Question

how to Evaluate the function at the indicated values??

f(x)= 2x-1
a.f(x+1)
b.f(2x)
c.2f(x)
d.f(x+h)
e.f(x)+f(h)

Answer 1

just substitute

f(x+1) = 2(x + 1) -1 distribute and simplify

f(2x) = 2(2x) -1 distribute and simplify

hope this helps you to get the idea of what you need to do.

Answer 2

i'll just substitute all upto e??

Answer 3

and i will get the answer?

Answer 4

yep... but you will need to distribute where necessary and simplify where necessary

and (c)is 2f(x) = 2(2x -1)

Answer 5

uhh ok i'll try it :)
thanks