Using the quadratic equation we get:

Factoring out 2 we get

Factoring out the imaginary number:

So b.
Answer:
Step-by-step explanation:
( 5/12) × (3/8) =(5×3)/(12×8) = 5/32
-2x+4y=36
Add +2x to both sides
4y=2x+36
Decide every term by 4
y= 2/4x + 9
The slope is 2/4