if f(x)=4x-3 what is f(-1)?

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2006-10-18 16:02:00 · 4 answers · asked by Somebody 2 in Science & Mathematics ➔ Mathematics

f(-1) = 4*(-1) - 3 = -4 - 3 = - 7

2006-10-18 16:04:49 · answer #1 · answered by Ivan 5 · 0⤊ 0⤋

If I'm not mistaken,

if f(x)=4x - 3
then f(-1)=4(-1) - 3
or

f(-1)= -4 - 3
f(-1)= -7

Hope this helps!

2006-10-18 16:06:05 · answer #2 · answered by illusivemuse 2 · 0⤊ 0⤋

like they said...just substitute the -1 where you see the x.

2006-10-18 16:07:29 · answer #3 · answered by Rex 4 · 0⤊ 0⤋

f(-1)=[4(-1)]-3
f(-1)=[-4]-3
f(-1)=-7

2006-10-18 20:07:03 · answer #4 · answered by ladjot 1 · 0⤊ 0⤋