PLZ HELP ME
MEH WILL MARK DA FIRST PERSON DAT ANSWERS IT CORRECTLY!!!!! :3

Answer:
Step-by-step explanation:
Pick any point that is clearly on the line. (g, c) = (12, 40) is the end point, so will do nicely. The value of r (the constant of proportionality) is the slope of the line, which is the ratio of the y-value of the point to the x-value (or c to g, in this case).
r = c/g = 40/12 = 10/3 . . . . . . the exact value of the constant r
Then your equation is ...
c = 10/3g . . . . . . put the value of r where r is in the equation you are given