Bluebook SAT Test Digital SAT Math Algebra Practice

Question 1

If 3x + 7 = 22, what is the value of x?

Accepted Answer

5

Answer

Subtract 7 from both sides: 3x = 15, then divide by 3: x = 5.

Question 2

A line passes through the points (2, 5) and (4, 11). What is the slope of the line?

Accepted Answer

3

Answer

Slope = (y₂ − y₁)/(x₂ − x₁) = (11 − 5)/(4 − 2) = 6/2 = 3.

Question 3

Which of the following is the solution to the inequality 2x − 4 > 8?

Accepted Answer

x > 6

Answer

Add 4 to both sides: 2x > 12, then divide by 2: x > 6.

Question 4

If f(x) = 2x² − 3x + 1, what is f(3)?

Accepted Answer

10

Answer

f(3) = 2(3)² − 3(3) + 1 = 2(9) − 9 + 1 = 18 − 9 + 1 = 10.

Question 5

The equation y = −2x + 6 represents a linear function. What is the y-intercept?

Accepted Answer

6

Answer

In slope-intercept form y = mx + b, the y-intercept b = 6.

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