Math Math Algebra and Functions

Question 1

Solve for x: 3x + 7 = 22

Accepted Answer

x = 5

Answer

3x = 22 − 7 = 15, so x = 15 ÷ 3 = 5.

Question 2

Which of the following is equivalent to 2(x + 3)?

Accepted Answer

2x + 6

Answer

Distribute 2: 2 × x + 2 × 3 = 2x + 6.

Question 3

What is the slope of the line y = 4x − 3?

Accepted Answer

4

Answer

In slope-intercept form y = mx + b, the slope m = 4.

Question 4

Evaluate f(x) = x² − 2x + 1 when x = 3.

Accepted Answer

4

Answer

f(3) = 3² − 2(3) + 1 = 9 − 6 + 1 = 4.

Question 5

Solve the inequality: 2x − 5 > 9

Accepted Answer

x > 7

Answer

2x > 9 + 5 = 14, so x > 7.

Math Practice Test