2007-01-20 03:41:03 · 13 answers · asked by CelticMoonGoddess 2 in Science & Mathematics ➔ Mathematics
First: the problem gives you the value for the x-variable...
Sec: replace "a+3" with the x-variable in the function...
f(x) = - 4x +2
f(a+3) = - 4(a+3) + 2
Third: eliminate parenthesis > multiply the outer term with the terms in the parenthesis...
f(a+3) = (- 4)(a) + (- 4)(3) + 2
f(a+3) = - 4a - 12 + 2
f(a+3) = - 4a - 10
2007-01-20 04:41:11 · answer #1 · answered by ♪♥Annie♥♪ 6 · 0⤊ 0⤋
You simply replace the x in the first function with a+3.
So the answer is -4(a+3)+2,
which simplifies to -4a -10
2007-01-20 11:48:27 · answer #2 · answered by Jay Sherman 1 · 1⤊ 0⤋
f(a+3) = -4(a+3) + 2 = -4a -12 +2= -4a - 10
2007-01-20 11:46:15 · answer #3 · answered by battousai 1 · 1⤊ 0⤋
f(x) = -4x +2
f(a + 3) = ?
All you have to do is substitute "x" by "a+3" in the equation. So,
f(a + 3) = -4(a+3) + 2
f(a + 3) = -4a -12 + 2
f(a + 3) = -4a - 10
f(a + 3) = -2(2a + 5)
2007-01-20 12:21:26 · answer #4 · answered by Anonymous · 0⤊ 0⤋
You just have to put a+3 instead of x.So you have :
f(a+3)=-4(a+3)+2
=>f(a+3)= -4a-12+2
=>f(a+3)= -4a-10
2007-01-20 11:46:50 · answer #5 · answered by Arash J 2 · 1⤊ 0⤋
f(x)= -4x+2
f(a+3)=-4(a+3)+2
= -4a-12+2=-4a-10 = -(4a+10)
2007-01-20 11:50:42 · answer #6 · answered by Anonymous · 1⤊ 0⤋
f(a+x)= -4(a+3)+2= -4a-10
2007-01-20 11:59:25 · answer #7 · answered by santmann2002 7 · 1⤊ 0⤋
x=a+3
-4(a+3)+2
=-4a-12+2
=-4a-10
2007-01-20 11:46:43 · answer #8 · answered by iyiogrenci 6 · 1⤊ 0⤋
this is correct
f(a+3)=-4(a+3) +2
which you then distribute
= -4a-12+2
=-4a-10
2007-01-20 12:00:30 · answer #9 · answered by a c 7 · 1⤊ 0⤋
Couple of people already got it I see.
-4a-10
2007-01-20 11:50:28 · answer #10 · answered by wushumaster94 1 · 0⤊ 0⤋