please explain and give the answer to this problem:
if h(x) = -4 - 7x, find h(-3)
2007-11-08 16:14:07 · 4 answers · asked by Anonymous in Education & Reference ➔ Homework Help
i dont get it.
2007-11-08 16:21:48 · update #1
Basically, you're substituting -3 as the x.
So then:
if h(x) = -4 - 7x, find h(-3)
h(-3) = -4 - 7(-3)
h(-3) = -4 - (-21)
h(-3) = -4 + 21
h(-3) = 17
2007-11-08 16:39:30 · answer #1 · answered by Mike 4 · 0⤊ 0⤋
h(x) means h is a function of x, given by the expression -4 - 7x.
So, h(-3) means x = -3, therefore
- 4 - 7*(-3) = -4 + 21 = 17
2007-11-09 00:45:46 · answer #2 · answered by an 4 · 0⤊ 0⤋
Where you see x in the function of x, insert -3 and do the math. In this case h(x)= +17
2007-11-09 00:19:49 · answer #3 · answered by cattbarf 7 · 0⤊ 0⤋
-4-7(-3)
-4- -21
-4+21
17
2007-11-09 00:27:51 · answer #4 · answered by Anonymous · 0⤊ 0⤋