Bluebook SAT Test Digital SAT Math Practice 3

Question 1

A store sells a jacket originally priced at $80 at a 25% discount. What is the sale price?

Accepted Answer

$60

Answer

A 25% discount on $80 is $20 off, making the sale price $80 − $20 = $60.

Question 2

Which expression is equivalent to (x + 3)² − (x − 3)²?

Accepted Answer

12x

Answer

Expanding: (x² + 6x + 9) − (x² − 6x + 9) = 12x.

Question 3

Line ℓ passes through (−1, 2) and (3, 10). What is its slope?

Accepted Answer

2

Answer

Slope = (10 − 2)/(3 − (−1)) = 8/4 = 2.

Question 4

A cylinder has a base radius of 3 and a height of 8. What is its volume?

Accepted Answer

72π

Answer

V = πr²h = π(9)(8) = 72π.

Question 5

The graph of y = a(x − h)² + k is a parabola with vertex at (−3, 5) that opens downward. Which set of values is correct?

Accepted Answer

h = −3, k = 5, a < 0

Answer

The vertex form places h and k directly from the vertex (−3, 5); a < 0 for a downward parabola.

Bluebook SAT Practice Test