Use the tape diagram to find the ratio.

Mr. Morris' art class used blue paint and purple paint for a school mural. Find the ratio of blue paint to the total. Write the ratio using a colon and no spaces.

In order for the function to be linear, what must m be and why? m = 22 because the rate of change is 1. m = 20 because the rate of change is 3. m = 22 because the rate of change is -1. m = 20 because the rate of change is -3.