What is the distance between the points (3,7) and (15,16) on a coordinate plane

John bought 5 lemons and used 2 of them for a salad how much did he use for.a salad . he used % of the lemons.

Which function is increasing? o a. f(x)=(1/15)* o b. f(x)= (0.5)* o c. f(x)=(1/5)* o d. f(x) = 5*

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.