Question

Find the indicated outputs for f(x) = 5x^2 - 5x
f(0) = ? f(-1) =? f(2) = ?

Answer 1

replace x by the various numbers, see what you get. for example
\[f(2)=5\times 2^2-5\times 2=5\times 4-10=20-10=10\]

Answer 2

for x = -1 use parentheses

Answer 3

f(x) = 5x^2 -5x
f(0)=5(0)-5(0)=
f(-1)= 5 -1^2 -5(-1)=
f(2)=5 (2)^2-5(2) =

just solve now!! :D

Answer 4

So f(2) =? would be 10?

Answer 5

Yeap!

Answer 6

So f(-1) would be 5?

Answer 7

so f(0) would be -1?

Answer 8

no for f(0) =0

Answer 9

bec. 5 times zero = zero

Answer 10

ah...okay I get it. thanks