Question

For the function, f(x) = -3x + 5.If f(x) = -1, what is the value of x?

A.-5
B. 8
C. -3
D. 2

Answer 1

Answer:A

Explanation:

Answer 2

`\huge\boxed{D.\ x=2}`

Explanation:

`f(x)=-3x+5\\\\f(x)=-1`

substitute

`-3x+5=-1` subtract 5 to both sides

`-3x+5-5=-1-5`

`-3x=-6` divide both sidesa by (-3)

`(-3x)/(-3)=(-6)/(-3)\\\\x=2`