NSC exam, Mathematics P1, November 2013
Assignment Type: Revision Paper
Total Marks: Unmarked
Information and Instructions - You may refer to the attached resource below
Attached Section Resource:
d9f9ba41-06f3-4d2e-bc18-3e83a63013f4.pdf
QUESTION 1
Question 1.1 - Solve for x in each of the following
Marks: 13
Question 1:

x2 - x -12 =0

Your Answer:
Question 2:

a. 2x2 - 5x -11 = 0 [4 marks]


 


b. 2x3 - 5x2 - 11x = 0 [2 marks]


 

Your Answer:
Question 3:

-3(x+7)(x-5) < 0

Your Answer:
Question 1.2
Marks: 6
Question 1:



Given: y + 2 = x and y = X2 – x – 10


Solve for x and y simultaneously

Your Answer:
Question 1.3
Marks: 3
Question 1:

Simplify: (32015 + 32013) / ( 91006)

Your Answer:
QUESTION 2
Question 2.1
Marks: 3
Question 1:

Given the geometric sequence: 7 ; x ; 63 ; ...


Determine the possible values of x.

Your Answer:
Question 2.2 - The first term of the geometric sequence is 15. If the second term is 10, calculate:
Marks: 5
Question 1:

T10

Your Answer:
Question 2:

S9

Your Answer:
Question 2.3 - Given 0; -1/2; 0; 1/2; 3/2; 0; 5/2; 0; 7/2; 0; ... Assume that this number pattern continues consistently.
Marks: 5
Question 1:

Write down the value of the 191st term of the sequence.

Your Answer:
Question 2:

Determine the sum of the first 500 terms of this sequence.

Your Answer:
Question 2.4
Marks: 5
Attached Section Resource:
3ce81d32-2d3c-4926-81d2-7b1c24815c18.png
Question 1:

Calculate the first term of the series `sum_(k=2)^20 (4x - 1) `k if x = 1

Your Answer:
Question 2:

For which values of x will `sum_(k=1)^oo(4x - 1)`k exist?

Your Answer:
QUESTION 3
Question 3.1 - Given the arithmetic sequence -3; 1; 5; ...; 393
Marks: 11
Question 1:

Determine a formular for the nth term of the sequence.

Your Answer:
Question 2:

Write down the 4th, 5th, 6th and 7th terms of the sequence.

Your Answer:
Question 3:

Write down the remainders when each of the first seven terms of the sequence is divided by 3.

Your Answer:
Question 4:

Calculate the sum of the terms in the arithmetic sequence that are divisible by 3.

Your Answer:
Question 3.2 - Consider the following pattern of dots:
Marks: 7
Attached Section Resource:
0410815d-7836-4f5d-9b28-400182197178.png
Question 1:

T5

Your Answer:
Question 2:

T50

Your Answer:
QUESTION 4
Marks: 10
Attached Section Resource:
ac335ca6-c90a-4629-9821-c9aef18beb71.png
Question 1:

Write down the coordinates of y-intercept of f.

Your Answer:
Question 2:

Determine the coordinates of the x-intercepts of f.

Your Answer:
Question 3:

Determine the coordinates of the turning point of f.

Your Answer:
Question 4:

Sketch the graph of y=f(x), clearly showing the coordinates of the turning points and the three intercepts with the axes.

Your Answer:
QUESTION 5
Question 5.1
Marks: 7
Attached Section Resource:
c3b814d8-7533-4461-acd3-8ba0d7d7daba.png
Question 1:

Determine the value of K.

Your Answer:
Question 2:

Give the equation of g-1 in the form of y= ...

Your Answer:
Question 3:

For which value(s) of x is g-1 (x) `<=` 0?

Your Answer:
Question 4:

Write down the domain of h if h(x) = g-1(x-3).

Your Answer:
Question 5.2
Marks: 4
Question 1:

Sketch the graph of the inverse of y=1.

Your Answer:
Question 2:

Is the inverse of y = 1 a function. Motivate your answer.

Your Answer:
Question 6.1
Marks: 8
Attached Section Resource:
a6e21b08-b6f8-4108-9086-a62e85cc9ac1.png
Question 1:

Determine the values of D and P.

Your Answer:
Question 2:

Show that the equation of f can be written as y= -3/x+1 +1.

Your Answer:
Question 3:

Write down the coordinates of P.

Your Answer:
Question 4:

Write down the coordinates of the image of B(2;0) if B is reflected about the axis of symmetry y= x+2.

Your Answer:
Question 6.2
Marks: 3
Question 1:

The expomential funxtion, g(x) = p.2+ q has a horizontal asymptote at y=1 and passes through (0 ; -2). :

Your Answer:
QUESTION 7
Question 7.1 - Mpho invests R12 500 for exactly k years. She earns interest at a rate of 9% per annum, compounded quarterly. At the end of k years, her investment is worth R30 440.
Marks: 7
Question 1:

Calculate the effective annual interest rate of Mpho's investment.

Your Answer:
Question 2:

Determine the value of k.

Your Answer:
Question 7.2 - Darrel is planning to buy his first home. The bank will allow him to use a maximum of 30% of his monthly salary to repay the bond.
Marks: 5
Question 1:

Calculate the maximum amount that the bank will allow Darrel to spend each month on his bond repayments, if Darrel earns R18 480 per month.

Your Answer:
Question 2:

Suppose at the end of each month, Darrel repays the maximum amount allowed by the bank. How much money does Darrel borrow if he takes 25 years to repay the loan at an interest rate of 8% p.a., compounded monthly?


(The first repayment is made one month after the loan is granted.)

Your Answer:
QUESTION 8
Question 8.1
Marks: 10
Attached Section Resource:
c4afe604-98f9-4497-bce6-e2c740f16a44.png
Question 1:

Determine f'(x) from first principles.

Your Answer:
Question 2:

A(X; 23) Where X > 0, and B(-2; y) are points on the graph of f.


Calculate the numerical value of the average gradient of f between A and B.

Your Answer:
Question 8.2
Marks: 3
Question 1:

Differentiate y =`(x+5)/sqrt(x)` with respect to x.

Your Answer:
Question 8.3
Marks: 4
Question 1:

Determine the gradient of the tangent of the graph of f(x) = -3x- 4x + 5 at x = -1.

Your Answer:
QUESTION 9
Marks: 11
Attached Section Resource:
2e2e4883-94f8-462d-824c-b0190a954cdd.png
Question 1:

Show that a=1 and b=-1.

Your Answer:
Question 2:

Hence, or otherwise determine the x-coordinate of R.

Your Answer:
Question 3:

Write down the coordinates of the turning point of h if h is defined by h(x)=2f(x)-4

Your Answer:
QUESTION 10
Marks: 6
Attached Section Resource:
3b567346-c48f-44d5-a0f5-e06e11558eb8.png
Question 1:

After how long will the water be flowing at the maximum rate?

Your Answer:
Question 2:

After how many seconds does the water stop flowing?

Your Answer:
QUESTION 11
Marks: 9
Attached Section Resource:
39776ce4-d9a3-403b-b22e-e28b5139b7f9.png
Question 1:

Write down the contraints that govern this system.

Your Answer:
Question 2:

Sketch the system of contraints (inequalities) and clearly indicate the feasible region.

Your Answer:
Question 11.3 - A profit of R30 is made on each short-sleeved shirt and a profit of R20 is made on each long-sleeved shirt.
Marks: 3
Question 1:

Write down the profit function.

Your Answer:
Question 2:

Detemine the number of short-sleeved and long-sleeved shirts that must be manufactured per day to provide the company with maximum profit.

Your Answer:
Question 11.4
Marks: 2
Question 1:

If the objective profit function is given by P = ax + by, determine (a/b) if P is maximised at each value of y between 100 and 160.

Your Answer:
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