PARCC Algebra 3

Question 1

What is the y-intercept of the line y = -2x + 7?

Accepted Answer

7

Answer

In y = mx + b, b is the y-intercept, which is 7.

Question 2

Solve the system: y = x + 1 and y = 2x - 3.

Accepted Answer

(4, 5)

Answer

Set x + 1 = 2x - 3 to get x = 4, then y = 5.

Question 3

Expand: (x + 4)(x - 2).

Accepted Answer

x^2 + 2x - 8

Answer

FOIL gives x^2 - 2x + 4x - 8 = x^2 + 2x - 8.

Question 4

If 5x = 35, what is the value of x?

Accepted Answer

7

Answer

Divide both sides by 5 to get x = 7.

Question 5

What is the value of 2^3 + 3^2?

Accepted Answer

17

Answer

2^3 = 8 and 3^2 = 9, so the sum is 17.

PARCC Practice Test