Rate of Change for the value of y
If y'(8)=1/12, how much would you think y would change between x=8 and x=8.12? (Hint: y' measures the rate of change of y per unit of change of x)
I tried to use y2-y1/x2-x1 and set it equal to 1/12 but I was wasn't sure which values to use for y2 and y1. Please help!