Unit 6 Test Review

Select all the equations where x = 4 is a solution.

• 1/2 * x = 8

• x - 4 = 0

• 44 = 4x

• 20 = 5x

• 1 + x = 3

Which expression is equivalent to 30 – 6d?

• (30 – 6)d

• 2(3d – 15)

• 3(10 – 6d)

• 3(10 – 2d)

Determine the solution to the equation.

x = ?

Determine the solution to the equation.

x = ?

Determine the solution to the equation.

x = ?

Select two expressions that have the same value. Show or explain your thinking.

• 3⁴

• 4³

• 3 ⋅ 4

• 3 ⋅ 3 ⋅ 3 ⋅ 3

Here is a new expression: 6³. Write an expression that has the same value.

Mathematical Equivalence

ON

Complete the table on the right for 20 pencils.

• $2.40

• $24.00

• $60.00

• $12.00

How many pencils could Sora buy with $150 if it cost her $1.20 per pencil.

Ishaan made a graph. What does the 5 from the point (5, 15) say about Ishaan’s situation?

• Constant

• Days

• Kilometers

• Variable