Answer:
y = 8
Step-by-step explanation:
for the triangles to be congruent, 2y + 20 must equal 36.
2y + 20 = 36
subtract 20 from each side of the equation:
2y = 16
divide both sides by 2:
y = 8
Put the equation in Slope Intercept Form. Then graph the y-intercept point. From the y intercept point use the slope to find your second point. Finally, draw the line using those points.
Answer:

Step-by-step explanation:

The radical symbol when used for a square root means the non-negative square root. You cannot state that sqrt(x^2) = x because x may be negative. That is why you need use the absolute value symbol.
Your anwser is 6x^2+7x-2 :) have a good day