CSET CSET Mathematics: Number Theory and Algebra 2

Question 1

Which of the following best describes a rational number?

Accepted Answer

Any number that can be written as p/q where p and q are integers and q ≠ 0

Answer

A number that cannot be expressed as a fraction

Answer

A non-repeating, non-terminating decimal

Answer

Any real number on the number line

Question 2

What is the slope of a line perpendicular to y = (2/3)x + 5?

Accepted Answer

−3/2

Answer

2/3

Answer

−2/3

Answer

3/2

Question 3

Which of the following is an example of the associative property of addition?

Accepted Answer

(a + b) + c = a + (b + c)

Answer

a + b = b + a

Answer

a + 0 = a

Answer

a(b + c) = ab + ac

Question 4

Solve for x: 3(x − 4) = 2x + 7

Accepted Answer

x = 19

Answer

x = 5

Answer

x = 11

Answer

x = 3

Question 5

What is the degree of the polynomial 4x³ − 7x² + x − 9?

Accepted Answer

3

Answer

1

Answer

2

Answer

4

Question 6

Which of the following correctly factors x² − 9?

Accepted Answer

(x − 3)(x + 3)

Answer

(x − 3)²

Answer

(x + 3)²

Answer

(x + 9)(x − 1)