Question

f(5)
f(x)=10x-x^2

Answer 1

f(x)=10x-x^2

f(5)=10*(5)-(5)^2 ... replace every x with 5

f(5) = ???

Answer 2

You dont make the whole equation equal to 5?

Answer 3

no, that's if you wanted to solve f(x) = 5

Answer 4

f(5) means evaluate f(x) when x = 5

Answer 5

its says to find f(x)

Answer 6

but i got 3/5

Answer 7

well you wrote f(5)

Answer 8

f(x)=10x-x^2

f(5)=10*(5)-(5)^2 ... replace every x with 5

f(5) = 10*5 - 25

f(5) = 50 - 25

f(5) = 25

Answer 9

oh right the x goes away

Answer 10

yes because you replace every x with 5

Answer 11

is that all there is to it?

Answer 12

yep

Answer 13

oh well thanks! I needed help with my calc stuff I appreciate it!

Answer 14

you're welcome