Question

Please help?
Suppose h:x→x2 −x.Then,h:−4→____ ? .
A –20 C 12
B –8 D 20

Answer 1

h: x --> x^2 - x

is the same as saying

h(x) = x^2 - x

Answer 2

when you say

h: -4 --> ___

you basically want to find h(-4)

Answer 3

So (4x^2)-(-4)?

Answer 4

*(-4x^2)-(-4)

Answer 5

h(x) = x^2 - x

h(-4) = (-4)^2 - (-4)

h(-4) = 16 + 4

h(-4) = 20

Answer 6

So -4 maps to 20 which means

h: −4→__20__

Answer 7

Ohh okay.

Answer 8

in goes x = -4

out comes h(x) = 20

Answer 9

Thanks :)

Answer 10

yw