Inverse Operations

Alexa is on a quest to find out how many jellyfish she needs to catch for her magical jelly recipe. She can uncover the mystery by using _________ or opposite operations.

Aubrey has 23 jellyfish and dreams of having a grand total of 65 jellyfish to build the ultimate jellyfish tower. To help Aubrey achieve her dream, you would...

• subtract 23 from both sides of the equation.

• add 65 to both sides of the equation.

• subtract 65 from both sides of the equation.

• add 23 to both sides of the equation.

Harper has 9 identical Krabby Patties, and the total weight of all the patties is 153 pounds. To uncover the mystery of the weight of one Krabby Patty, Harper would...

• add 9 to both sides

• multiply by 9 on both sides

• subtract 9 from both sides

• divide by 9 on both sides

Coltyn and Micah are having a pizza party and decide to share a pizza equally. If they want to figure out how many slices each person gets, what magical math operation should they use to reverse the division of slices?

• addition

• multiplication

• subtraction

• division

Are the blue and red graphs inverse functions?

• yes

• no

• no way to tell

An ​ (a)   takes a previously found result ( a y value) and returns it to its original value (x value). This means you are ​ (b)   a function

• function

• inverse

• 2 or more

• undoing

Are these the graphs of two inverse functions?

• Yes

• No

• No way to tell

Solve using inverse operations:

6x = 18

• x = 3

• x = 24

• x = 12

• x = 6

• x = 41

• x = 7

• x = 17

• x = 24

• subtract 39 from both sides to get 62

• divide 39 from both sides to get 2.5

• multiply 39 to both sides to get 62

• add 39 to both sides to get 140