Respuesta :
If f (4) is the input then you need to insert the 4 for X.
so f(4)= 4×4+7
f (x)= 23
so f(4)= 4×4+7
f (x)= 23
Answer:
Step-by-step explanation:
f(x) = 4x+7
Here f(x) is the function defined for x .
so when we need f(4) we replace the x in the equation by 4 to get f(4)
f(x) = 4x+7
f(4)=4.4+7
Now we need to simplify it to get the required value
f(4) =16+7
f(4)= 23