Answer:
m =1
Step-by-step explanation:
First isolate the "y" in the equation.
2y - x = -12 Add x on both sides
2y - x + x = -12 + x
2y = -12 + x Divide 2 on both sides to get "y" by itself


Your slope is
.
For the equation of the line to be parallel to the given equation, the slopes have to be the same. So the parallel line's slope is also 
y = mx + b

To find "b", you plug in the point (18,2) into the equation


2 = 9 + b Subtract 9 on both sides
2 - 9 = 9 - 9 + b
-7 = b
Your equation is:

X intercept: when y = 0
y intercept: when x = 0
Plug info inside the equation
3x + 7(0) = 42
3x = 42, x = 14
Therefore, x intercept: (14,0)
3(0) + 7y = 42
7y = 42, y = 6
Therefore, y intercept: (0,6)
Answer:
The answer is C: She factored x2+10x+16 incorrectly.