Question

Trying to help my daughter with functions before she goes back to school tomorrow. Can someone please explain this so I can teach her? It has been a long time since 8th grade.
Problem: f(x)=-3x+8, find f(5)

Answer 1

plug in 5 into x

Answer 2

okay well \(f(5)\) is nothing but just the value of function \(f(x)\) when \(x=5\)

to find \(f(5)\) just put \(x=5\) in the equation of \(f(x)\)

Answer 3

Do I put it next to the 3 or the f?

Answer 4

what is your answer then

Answer 5

3

Answer 6

it should look like this -3(5)+8

Answer 7

-7

Answer 8

you are correct:)

Answer 9

Awesome thank you!!

Answer 10

u are welcome :)