Answer:
680 kilometer per hour
Step-by-step explanation:
The green line is the graph of [ y = -2x + 1 ].
The red line is the graph of [ y = 2x - 3 ].
Choice 'C' says this.
In a slope intercept equation in the form of y=mb+b,
m is the slope. m is the coefficient of x, meaning it is the number x is multiplied by. In this case, m happens to be
-5
which is your answer