This is how your graph should look like
So you're initial equation is

. Well since

, plug in 24 for the 1 in

. So

, and

so

.
Answer:
-9 and -4
Step-by-step explanation:
It’s a pentagon (5 sides) . (n-2) x 180°. if you put it into the formula and do the reverse. 540 / 180 = 3
, 3+2 = 5