Yo so like, help me, image is below

The graph shows the rate at which paint is used to paint a wall. enter values to complete each statement below based on the graph. when 1 gallon of paint has been used, ( # ) square feet of the wall will be painted. the unit rate is ( # )square feet per gallon.

Ijust need to see how to do this. so you don’t have to answer all of them just a step by step explanation of one.

What is the point slope form of a line with slope -5 that contains point (2,-1)