Problem 5 algebra help needed

Question

Show some work.

A.For f(x)=-5x+7

(a) Find f(8.3)

(b) Find f(-3)

(c) Find x when f(x)=48

Answer 1

Hi Angeles L

All you need to do for a) and b) these is to plug in the values of x given then perform the multiplication and addition given.

For c) Solve the equation for x since f(x) = y is given

For f(x) = -5x + 7

a) f(8.3) = -5(8.3) + 7 = -41.5 + 7 = -34.5

b) f(-3) = -5(-3) + 7

c) 48 = -5x + 7

I did a) above and started b) can you continue and do the rest? If you need further clarification please just ask. I hope this helps.