Question

Given f(x)= 2x-3 , what is f(-5) ?

A.
–16

B.
–13

C.
7

D.
30

Answer 1

B

Answer 2

f(x)=2x-3
x=-5

Replace the variable x with -5 in the expression.
f(-5)=2(-5)-3

Multiply 2 by each term inside the parentheses.
f(-5)=-10-3

Subtract 3 from -10 to get -13.
f(-5)=-13


Hope this helps. :)