NSAA NSAA Mathematics - Algebra and Functions

Question 1

Solve for x: 3x - 7 = 14

Accepted Answer

x = 7

Answer

x = 3

Answer

x = 5

Answer

x = 9

Question 2

Which of the following is a factor of x² - 5x + 6?

Accepted Answer

(x - 2)

Answer

(x - 1)

Answer

(x + 3)

Answer

(x + 6)

Question 3

If f(x) = 2x² - 3, what is f(4)?

Accepted Answer

29

Answer

13

Answer

22

Answer

32

Question 4

Solve: 2x + 3y = 12 and x - y = 1 simultaneously. What is y?

Accepted Answer

2

Answer

1

Answer

3

Answer

4

Question 5

What is the discriminant of 2x² - 4x + 2 = 0?

Accepted Answer

0

Answer

8

Answer

16

Answer

-8

Question 6

If g(x) = 3x + 1, what is g⁻¹(x)?

Accepted Answer

(x-1)/3

Answer

(x+1)/3

Answer

3x-1

Answer

1/(3x+1)