# Mathematics Grade 12 P1 NSC November 2019 QP (Eng)

> Grade 12 Mathematics Paper 1 question paper from the NSC November Exam 2019 (English), 10 pages. Read online or download the free PDF.

- Page: https://www.hlayiso.com/library/mathematics-p1-nov-2019-eng/8f54255d-f2d8-49ae-bf66-d333f099abc9
- Updated: 2026-09-27
- Subject: Mathematics
- Grade: Grade 12
- Document type: Question paper
- Year: 2019
- Exam period: NSC November Exam
- Paper: 1
- Curriculum: CAPS
- Pages: 10

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## About this document

Mathematics · Grade 12 · NSC November Exam · 2019. Question paper, 10 pages. Read online or download the PDF.

Read it free online on the page above; download the PDF from there.

## Document text

Text extracted from the PDF. Layout, diagrams and tables may not survive extraction.

### Page 1

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MARKS: 150
TIME: 3 hours
This question paper consists of 9 pages and 1 information sheet
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Mathematics/P1 2 DBE/November 2019

NSC

INSTRUCTIONS AND INFORMATION

Read the following instructions carefully before answering the questions.

1.

2.

10.

This question paper consists of 11 questions.
Answer ALL the questions.

Number the answers correctly according to the numbering system used in this
question paper.

Clearly show ALL calculations, diagrams, graphs, etc. that you have used in
determining your answers.

Answers only will NOT necessarily be awarded full marks.

You may use an approved scientific calculator (non-programmable and
non-graphical), unless stated otherwise.

If necessary, round off answers to TWO decimal places, unless stated otherwise.
Diagrams are NOT necessarily drawn to scale.
An information sheet with formulae is included at the end of the question paper.

Write neatly and legibly.

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Mathematics/P1 3 DBE/November 2019
NSC

QUESTION 1

11 Solve for x:

11.1 x? +5x-6=0 (3)
1.1.2 4x? +3x-5=0 (correct to TWO decimal places) GB)
1.1.3 4x7 -1<0 (3)

114 ( Vi2+x|( \W32-x)=x (4)

1.2 Solve simultaneously for x and y:
y+x=12 and x=14-3x (5)
1.3 Consider the product 1x 2x34... x 30.
Determine the largest value of k such that 3* is a factor of this product. (4)
[22]
QUESTION 2
2.1 Given the quadratic sequence: 321 ; 290 ; 261 ; 234; ....
2.1.1 Write down the values of the next TWO terms of the sequence. (2)
2.1.2 Determine the general term of the sequence in the form 7, =an*+bn+c. (4)
2.1.3 Which term(s) of the sequence will have a value of 74? (4)
2.1.4 Which term in the sequence has the least value? (2)
. ~ . 5,5 §
2.2 Given the geometric series: — + — +——+...=K
8 16 32
2.2.1 Determine the value of K ifthe series has 21 terms. (3)
2.2.2 Determine the largest value of n for which T, > aa (4)
[19]

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Mathematics/P 1 4 DBE/November 2019
NSC
QUESTION 3
10. 1 10 1
3.1 Without using a calculator, determine the value of: y— -y— (3)

jayv-2 sBy-l
3.2 A steel pavilion at a sports ground comprises of a series of 12 steps, of which the first
3 are shown in the diagram below.
Each step is 5m wide. Each step has a rise of ; m and has a tread of 2 m, as

shown in the diagram below.

wire

a AS
\

»

wn

3

The open side (shaded on sketch) on each side of the pavilion must be covered with

metal sheeting. Calculate the area (in m’) of metal sheeting needed to cover both

open sides. (6)
[9]

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Mathematics/P1 5 DBE/November 2019
NSC
QUESTION 4
Below are the graphs of f(x)=x? +bx—3 and g(x)=—“
x+p

« f has aturning point at C and passes through the x-axis at (1; 0).

. D isthe y-intercept of both f and g. The graphs f and g also intersect each other at E
and J.

e The vertical asymptote of g passes through the x-intercept of f

yl
n 1 44
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f\ | MI
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—__ \ fe) fi x
+ - /'
g~ fil
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, oI
’
Al Write down the value of p. 65)
4.2 Show that a=3 and b=2. @)
43 Calculate the coordinates of C. (4)
4.4 Write down the range of f (2)
4.5 Determine the equation of the line through C that makes an angle of 45° with the
positive x-axis. Write your answer in the form y=... (3)

4.6 Is the straight line, determined in QUESTION 4.5, a tangent to f? Explain

your answer. (2)
47 The function h(x) = f(m—x)+q has only one x-intercept at x= 0. Determine the
values of m and q. (4)
[19]

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Mathematics/P 1

QUESTION 5

6 DBE/November 2019
NSC

Sketched below is the graph of f(x)=k*;k>0. The point (4; 16) lies on f

y

5.1 Determine the value of k. (2)
5.2 Graph g is obtained by reflecting graph f about the line y= x. Determine the
equation of g in the form y=... (2)
5.3 Sketch the graph g. Indicate on your graph the coordinates of two points on g. (4)
5.4 Use your graph to determine the value(s) of x for which:
5.4.1 F(x) x g(x) > 0 (2)
5.4.2 g(x)s-l1 (2)
5.5 If A(x)=f(-x), calculate the value of x for which f(x)— h(x) = 2 (4)
[16]

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Mathematics/P1 7 DBE/November 2019
NSC

QUESTION 6

6.1 Two friends, Kuda and Thabo, each want to invest R5 000 for four years. Kuda

invests his money in an account that pays simple interest at 8,3% per annum. At the
end of four years, he will receive a bonus of exactly 4% of the accumulated amount.
Thabo invests his money in an account that pays interest at 8,1% p.a., compounded
monthly.

Whose investment will yield a better return at the end of four years? Justify your
answer with appropriate calculations. (5)

6.2 Nine years ago, a bank granted Mandy a home loan of R525 000. This loan was to be
repaid over 20 years at an interest rate of 10% p.a., compounded monthly. Mandy's
monthly repayments commenced exactly one month after the loan was granted.

6.2.1 Mandy decided to make monthly repayments of R6 000 instead of the
required R5 066,36. How many payments will she make to settle the
loan? (5)

6.2.2 After making monthly repayments of R6 000 for nine years, Mandy
required money to fund her daughter's university fees. She approached the
bank for another loan. Instead, the bank advised Mandy that the extra
amount repaid every month could be regarded as an investment and that
she could withdraw this full amount to fund her daughter's studies.
Calculate the maximum amount that Mandy may withdraw from the loan

account. (4)
[14]
QUESTION 7
7A Determine / ‘(x) from first principles if it is given that f(x) = 4-7x. (4)
72 Determine 2 if yo4xt +x? GB)
73 Given: y=ar’? +a
Determine:
dy
73.1 = 1
° fo)
dy
. — 2
73.2 da (2)
74 The curve with equation y ax4l2 passes through the point A(2 ; b). Determine
x
the equation of the line perpendicular to the tangent to the curve at A. (4)
[14]

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Mathematics/P 1 8 DBE/November 2019

NSC

QUESTION 8

After flying a short distance, an insect came to rest on a wall. Thereafter the insect started
crawling on the wall. The path that the insect crawled can be described by

h(t) = (¢-6)(-20? + 34-6), where hr is the height (in cm) above the floor and ¢ is the time
(in minutes) since the insect started crawling.

8.1 At what height above the floor did the insect start to crawl?

8.2 How many times did the insect reach the floor?

8.3 Determine the maximum height that the insect reached above the floor.
QUESTION 9

Given: f(x) =3x°
9.1 Solve f(x) =f /(x)
9.2 The graphs f, f’ and f” all pass through the point (0; 0).

9.2.1 For which of the graphs will (0; 0) be a stationary point?

9.2.2 Explain the difference, if any, in the stationary points referred to in
QUESTION 9.2.1.

9.3 Determine the vertical distance between the graphs of f’ and f” at x=1.

9.4 For which value(s) of x is f(x)—f '(x) <0?

QUESTION 10

The school library is open from Monday to Thursday. Anna and Ben both studied in the school
library one day this week. If the chance of studying any day in the week is equally likely,
calculate the probability that Anna and Ben studied on:

10.1 The same day

10.2 Consecutive days

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(1)
2)

(4)
8]

(3)

(1)
(2)
(3)

(4)
[13]

(2)

(3)
15]

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Mathematics/P1 9 DBE/November 2019
NSC

QUESTION 11

1L.1 Events A and B are independent. P(A)=0,4 and P(B)= 0,25.

11.2

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11.1.1 Represent the given information on a Venn diagram. Indicate on the Venn
diagram the probabilities associated with each region.

11.1.2 Determine P(A or NOT B).

Motors Incorporated manufacture cars with 5 different body styles, 4 different interior
colours and 6 different exterior colours, as indicated in the table below.

BODY STYLES INTERIOR COLOURS EXTERIOR COLOURS
Blue Silver
Blue
Five body styles Grey White
Black Green
Red
Red Gold

The interior colour of the car must NOT be the same as the exterior colour.

Motors Incorporated wants to display one of cach possible variation of its car in their
showroom. The showroom has a floor space of 500 m?and each car requires a floor

space of 5m’.

Is this display possible? Justify your answer with the necessary calculations.

TOTAL:

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(3)
(2)

(6)
(14)

150

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Mathematics/P1 DBE/November 2019
NSC
INFORMATION SHEET
re —b+ Vb? —4ac
2a
Az=P(l+ni) A= P(1-ni) A=P(1-i)" A=P(1+i)"
T, =a+(n—ld 5, =F a+(n—nd]
T, =ar™" 5, =a eee] S,.= 3 -I<r<l
r-1 l-r

pa li+o =I) palnd+)"

t v

f'@)= lim

+ +
d= (x, -x) +O, -y) Mm > a }

F(x +h)- fF)
h

y=mxte y~y, =m(x-x,) ma m=tan@
x —X

(x-a) +(y—by =r
In AABC: a

sinA sinB sinC

a’ =b' +c’ —2be.cos A

area AABC = >-ab.sinC
sin(a + 8) = sinacos #8 +cosasin 8 sin(a — £) =sinacos 8 —cosasin B
cos(a + 8) = cosa cos B —sinasin B cos(a — 8) =cosacos #+sinasin B

cos’ a—sin? a
cos2a =41—2sin’? a sin2a@ = 2sinacosa
2cos’ a—1
_ x 6, -xy
x= oa 2 _ al
n a
n
P(A) = nA) P(A or B) = P(A) + P(B) — P(A and B)
n(S)
x-x\y-y

psat+bx p— ad Xy-9)

Sex)

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