Answer:
33 degrees
Step-by-step explanation:
(4x+1) and (2x-19) add up to 180 degrees

The answer is about 43. In other words, it was going 43 mph.
Is there a second equation?
Answer:
(- 3, - 5 )
Step-by-step explanation:
The solution to a system of equations given graphically is at the point of intersection of the 2 lines.
The lines intersect at (- 3, - 5 ) ← solution