The slope is 16/0 which means it is undefined
The answer is 69.6 degrees because all of the angles of a triangle always add up to 180 degrees so adding 42 and 68.4 gets 110.4, and then subtracting that from 180 gets 69.9.
Assuming this triangle is a right triangle, 52 degrees.
The second one is a perfect square trinomial
X^2+16x+64
Answer:
what's there to intercept its 1 line
