Yes because 3² + 4² = 5²
to be sure
9 + 16 = 25
25 = 25
-x+8
I wrote out the problem above to my best knowledge
Answer:
x= 48
Step-by-step explanation:

For a parallel line the slope of the lines/equations will be the same but for perpendicular line the slope will be the negative reciprocal
-(1/4)*x+b
b=2-(-1/4)*8