Question

Given f(x)=5(4-x) what is the value of f(-7)

Answer 1

So we replace "x" with the necessary value (-7):

`f( - 7) \: = \: 5(4 \: - \: ( - 7))`

`f( - 7) \: = \: 5(4 \: + \: 7)`

`f( - 7) \: = \: 5 \: * \: 11`

`f( - 7) \: = \: \boxed{ \bold{55}}`

Answer:

`\boxed{ \bold{55}}`

MissSpanish