Question

Question 5<>Evaluating FunctionsUse the function f(x) = 7x - 5 to answer the following questionsEvaluate f(2):|f(2)=1Determine when f(x)

Answer 1

Given:

There is an function given in the question as

$f(x)=7x-5$

Required:

A) We need to evaluate f(2)

B) Find x when f(x)=-12

Explanation:

A) To find f(2) just substitute x=2 in the given function

$f(2)=7*2-5=14-5=9$

B) f(x)=-12 to find the x

take x aside and find the value of x

$\begin{gathered} 7x-5=-12 \\ 7x=-12+5 \\ 7x=-7 \\ x=-1 \end{gathered}$

Final answer:

A) 9

B) x=-1