The graph of the linear function f is shown in the xy-plane above. The slope of the graph of the linear
function g is 4 times the slope of the graph of f. If
the graph of g passes through the point (0,-4), what
is the value of g(9) ?
A) 5
B) 9
C) 14
D) 18

explanation:

previous steps have made pa≅ pb ≅ st ≅ su. setting the compass width to ab allows you to make tu the same length. then δstu ≅ δpab by the sss congruence postulate, and ∠p ≅ ∠s by the reason cpctc.

answer:   (s+1)(s+4)

step-by-step explanation:

factor s2+5s+4

s2+5s+4

=(s+1)(s+4)

use distributive property on all like terms and change your signs if you have a double negative or if you have positive/negative