COMPASS Algebra 3

Question 1

What is the domain of f(x) = 1/(x − 4)?

Accepted Answer

All real numbers except x = 4

Answer

All real numbers

Answer

All real numbers except x = −4

Answer

x ≥ 4

Question 2

Which equation represents a line parallel to y = 2x + 1?

Accepted Answer

y = 2x − 5

Answer

y = −2x + 1

Answer

y = (1/2)x + 1

Answer

y = −(1/2)x + 3

Question 3

Evaluate: 3⁻² as a fraction

Accepted Answer

1/9

Answer

−9

Answer

9

Answer

−1/9

Question 4

Solve: |2x − 3| = 7

Accepted Answer

x = 5 or x = −2

Answer

x = 5 or x = 2

Answer

x = −5 or x = 2

Answer

x = 4 or x = −2

Question 5

What is the vertex of the parabola y = (x − 3)² + 2?

Accepted Answer

(3, 2)

Answer

(−3, 2)

Answer

(3, −2)

Answer

(2, 3)

Question 6

Simplify: (2x³)/(6x) where x ≠ 0

Accepted Answer

x²/3

Answer

3x²

Answer

x/3

Answer

2x²/3