You can make a proportion of 8/20 to 42/x and then simply cross multiply from there to solve for y
hypotenuse = adjacent / cos x
h = 4 / cos(59)
h = 7.76641610 ...
CD=8
Answer: x= 1/2
Step-by-step explanation:
0x+5=2x+4
5=2x+4
-4 from both sides
1=2x
divide both side by 2
1/2=x
I can't really graph this for you but here's some points.
(X, Y): (-4, 0), (-3, 3), (-2, 0), (-1, -3), (0,0)
Here's the end behavior:
x⇒∞, y⇒∞
x⇒-∞, y⇒-∞