SOLUTION: if f(x) =2x+5 find the following. f(-4) f(3)-5

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Question 59299: if f(x) =2x+5 find the following.
f(-4)
f(3)-5
Answer by funmath(2933) About Me  (Show Source):
You can put this solution on YOUR website!
if f(x) =2x+5 find the following.
:
f(-4) Substitute -4 in for x and simplify.
f(-4)=2(-4)+5
f(-4)=-8+5
f(-4)=-3
:
f(3)-5 Substitute 3 in for x subtract 5 and simplify.
f(3)-5=(2(3)+5)-5
f(3)-5=6+5-5
f(3)-5=6
:
Happy Calculating!!!