Algebra Review

What is the first step in solving for x?

3x - 1 = 8

• Divide each side of the equation by 3

• Add 1 to each side of the equation

• Subtract 8 from each side of the equation

What is the slope of the line?

• m = -5

• m = 3/4

• m = -3/4

Simplify the following expression:

(2x²)³

• 6x⁵

• 6x⁶

• 8x⁵

• 8x⁶

Solve the following system of equations using substitution.

y = 2x + 1

y - 8 = 3x

• (-7, -13)

• (-13, -7)

• (7, 13)

What is the solution?

• (4, -1)

• (5, -2)

• (-2, 5)

The function for Sprint is f(l) = 100 + 10*l

The function for T-Mobile is f(l) = 50 +20*l

When graphed, they intersect at the point (5, 150). What does this mean?

• They both cost $5

• The both cost $150 with 5 additional lines.

• 4

• -4

• -4 and 4

Which inequality matches the graph?

• y ≤ 2x + 1

• y = 2x + 1

• y < 2x + 1

I walked to Starbucks, stayed there for a bit and then walked home. What section (1, 2, or 3) of the graph am I at Starbucks? What is the slope?

• 1, positive slope

• 2, undefined slope

• 2, zero slope

• 3, negative slope

• 10

• -10

• 2

• -2