Open Up Expressions and Equations

Which expression is equal to 6⁴?

• 10

• 24

• 4⁶

• 6x6x6x6

Select all the equations where x=3 is a solution. (3 total)

• x - 3 = 0

• 1 + x = 2

• 9 - x = 3

• 6 = 2x

• x² = 9

Which expression is equivalent to 20c - 8d

• 2(10c + 4d)

• 4(5c - 8d)

• 4(5c - 2d)

• c(20 - 8d)

Here is an expression: 3 x 2^t

What is the value of the expression when t is 4?

• 24

• 48

• 11

• 18

A symbol, often a letter, representing a quantity in an expression or mathematical equation.

• reciprocal

• expression

• variable

• coefficient

The constant a variable is multiplied by in an equation.

• variable

• numerator

• coefficient

• denominator

A number that can be used in place of the variable to make the equation true.

• solution to an equation

• coefficient

• mark

• graph

What is 12 ⋅ 12 ⋅  12 ⋅ 12 written as a exponent

• 12⁴
• 12  ⋅  4
• 4¹²

Identify the variable in the equation:

2x + 17 = 23

• 2

• x

• 17

• 23

Identify the coefficient in the equation:

2x + 17 = 23

• 2

• x

• 17

• 23