Question

7. Use the pair of functions to find the value of each of the following combinations of functions

Answer 1

Given:

`\begin{gathered} f(x)=x^2 \\ \\ g(x)=(9)/(-8x+5) \end{gathered}`

Required:

To find (f-g)(-10).

Step-by-step explanation:

Consider

`\begin{gathered} (f-g)(x)=x^2-(9)/(-8x+5) \\ \\ (f-g)(-10)=(-10)^2-(9)/(-8(-10)+5) \\ \\ =100-(9)/(80+5) \\ \\ =100-(9)/(85) \\ \\ =100-0.1058 \\ \\ =99.8941 \end{gathered}`

Final Answer:

`(f-g)(-10)=99.8941`