In your own words, explain what it means for a transformation to be a rigid motion? (Help me pleass)

You are remodeling your kitchen. you’ve contacted two tiling companies who gladly told you how long it took their workers to tile of a similar size jim completed half the floor in 8 hours. pete completed half of the other floor in 7 hours. if pete can lay 20 more tiles per hour than jim, at what rate can jim lay tiles

Ineed with number 6 , explain how to get 1978

Which graph represents the parent function of y=(x+2)(x-2)