CAASPP Math Practice Test (Gr11) 2

Question 1

Which expression is equivalent to (x² - 9) / (x² - x - 6)?

Accepted Answer

(x-3)/(x-2)

Answer

Factor numerator as (x-3)(x+3) and denominator as (x-3)(x+2), then cancel (x-3) to get (x+3)/(x+2).

Question 2

A savings account earns 3.5% annual interest compounded annually. If $2,000 is deposited, what is the balance after 4 years?

Accepted Answer

$2,295.05

Answer

Using A = P(1+r)^t: 2000(1.035)^4 ≈ 2000(1.14752) ≈ $2,295.05.

Question 3

What is the solution set of |2x - 5| > 3?

Accepted Answer

x < 1 or x > 4

Answer

Solving gives 2x-5 > 3 → x > 4, or 2x-5 < -3 → x < 1, so x < 1 or x > 4.

Question 4

A circle has equation x² + y² - 6x + 4y - 12 = 0. What is its radius?

Accepted Answer

5

Answer

Completing the square: (x-3)² + (y+2)² = 9+4+12 = 25, so radius = 5.

Question 5

The table shows: x: 1,2,3,4 and y: 3,9,27,81. Which function models this data?

Accepted Answer

y = 3^x

Answer

Each y value is 3 raised to the x power (3¹=3, 3²=9, 3³=27, 3⁴=81), so y = 3^x.

CAASPP - California Assessment of Student Performance and Progress Practice Test