Answer:
C = 2M + 10
Step-by-step explanation:
To write this equation, we will use slope-intercept form: y = mx+b
In this problem, C is y and M is x, so: C = mM + b
m is the slope, or the rate of change, and b is the y-intercept.
The y-intercept in this problem is the $10 flat fee.
The rate of change is the additional $2 per mile.
Let's input these values into our equation:
C = 2M + 10