Question

Let f(x)=3−3x+5x^2. Calculate the following values: f(a)=? f(a+h)=?. Then simplify (f(a+h)−f(a))/h=?

I'm having a lot of trouble with this. Please help!

Answer 1

To find f(a) just replace x by a in f(x)

Answer 2

can u do that?

Answer 3

yes, im trying

Answer 4

Did u find f(a)

Answer 5

i just solve for x right?

Answer 6

f(a)=3-3a+5a^2

Answer 7

got it?

Answer 8

Yeah! makes since now

Answer 9

Now, can u find f(a+h)

Answer 10

Do I just plug f(a) into the equation or do I need to solve it for a?