A2-mi cab ride costs $4.25. a 7-mi cab ride costs $8.50. which equation models the cost y of a cab ride that is x miles?
a. y= -0.85x+2.55
b. y= 0.85x-2.55
c. y= 0.85x+2.55
d. y= -0.85x-2.55

The answer is the option C

Step-by-step explanation:

Let

x-------> the number of miles

y------> the cost

The formula to calculate the slope between two points is equal to

we have

Substitute the values

Find the equation of the line

The equation of the line into slope-intercept form is equal to

we have

substitute and solve for b

The equation of the line is equal to