X=4 or X=-4 because 4(4)^2 does =64
F(x) = 3x+1
put x = a+h
f(a+h) = 3(a+h) + 1
f(a+h) = 3a + 3h + 1
put x = a
f(a) = 3a + 1
f(a+h)-f(a) = 3a + 3h + 1 -(3a+1)
f(a+h)-f(a) = 3a +3h + 1 - 3a -1
f(a+h)-f(a) = 3h
Answer:
-3x+1
Step-by-step explanation:
The first y equals -3 and the second y equals -9
Choice B would be the correct answer. I hope that helps! :D
