Let f(x) = 4x + 3 and g(x) = -2x + 5. Find.(f o g) (5)

QUESTION POSTED AT 29/05/2020 - 01:00 AM

Answered by admin AT 29/05/2020 - 01:00 AM

f(x) = 4x + 3
g(x) = -2x + 5

(f o g) (5) means the function of g when g is a function of 5
(the function of the function concept)

so we need to get g(5) firstly


g(x) = -2x + 5
g(5)= -2(5) + 5 = -5

After that, f(g(5)) = f(-5) = 4(-5) + 3 = -20 + 3 = -17


I hope that helps
Post your answer

Related questions

9000 for 5 years at 4.5% compounded monthly

QUESTION POSTED AT 02/06/2020 - 01:30 AM

If f(x)=-5x-11. then f-(x)

QUESTION POSTED AT 02/06/2020 - 01:29 AM

Is (1,-4) a solution to the equation y=-2x

QUESTION POSTED AT 01/06/2020 - 05:03 PM