Elective Mathematics

Question 1

1Solve −5x > 23.

Medium

A. x < −4.6 B. x > −4.6 C. x < 4.6 D. x > 4.6

Question 2

2The solution of x² > 9 is

Medium

A. −3 < x < 3 B. x < −3 or x > 3 C. x > 9 D. x > 3 only

Question 3

3Solve |x − 2| < 3.

Medium

A. x < −1 or x > 5 B. x < 5 C. −1 < x < 5 D. 5 < x < 19

Question 4

4|x| ≥ 0 for every real x.

Easy

A. True B. False

Question 5

5x² ≥ 0 for all real x.

Easy

A. True B. False

Question 6

6The solution of |x| = 3 is x = 3 or x = ___

Easy

Your answer (fill in the blank)

Question 7

7Solve 5x + 1 < 12.

Easy

A. x > 2.2 B. x < 2.6 C. x < 11 D. x < 2.2

Question 8

8The solution of x² < 9 is

Medium

A. x > 3 B. x < −3 C. x < 9 D. −3 < x < 3

Question 9

9Solve x² − 1x − 12 < 0.

Medium

A. x < −3 or x > 4 B. −3 < x < 4 C. 4 < x < 7 D. x < 4

Question 10

10The solution of |x| = 7 is x = 7 or x = ___

Easy

Your answer (fill in the blank)