Question

What is the value of function f(x) =3x - 7 when x=4

Answer 1

⇒Given the function f(x)=3x-7 ,when x=4 this means that in the function f in the place of x substitute 4 and simplify.

⇒
`f(4)=3(4)-7\\f(4)=12-7\\f(4)=5`

⇒The value of the function f when x=4 is 5