Question

Given the function h(x), find the value of h(-2). h(x) = x² + 4x - 7

Answer 1

Answer:-9

Explanation:

h(-2)=h(x)

it symbolize that x=-2;

so, we'll replace every x with -2:

-2^2+3*(-2)-7=4-6-7=-9

Answer 2

Explanation:

`{ \tt{h(x) = {x}^(2) + 4x - 7 }}`

Substitute for x as -2;

`{ \tt{h( - 2) = {( - 2)}^(2) + 4( - 2) - 7}} \\ \\ { \tt{h( - 2) = 4 - 8 - 7}} \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \\ \\ { \tt{h( - 2) = - 11}} \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \:`