algebra
posted by sharday on .
Find the average rate of change of f(x)=3x^2+1:
a) From 1 to 3____
b) From 3 to 5____
c) From 1 to 4______

(a) [f(3)  f(1)]/(31)
= (284)/2 = 12
(b) [f(5) f(3)]/(53)
= (7628)/2 = 24
(c) [f(4)  f(1)]/(41)
= (your turn)