Question

For each function, what is the output of the given input?
For f(x) = 4x+7, find f(4)

Answer 1

@funinabox ?

Answer 2

f(x) = 4x+7
now the question asks for the f(4)

So u must substitute 4 instead of x in f(x) ....
f(x) contain only one term which include x - i.e "4x"
now substitute 4 instead of x in "4x"

and u will get a expression like this
4x+7 -----> (4*4) +7 = 23
yep! , that's the value of f(4) ..... Did u get it now ?

Answer 3

Yes! Thank you soo much!

Answer 4

u r welcome!