We have been given that cab company charges a base rate of $1.50 plus 15 cents per minute.
Thus, the fixed rate is $1.50
Now, the total duration is x minutes and company charges 15 cents = $0.15 per minute
Thus, the variable cost is given by 0.15x
Therefore, the total cost is given by
Total cost = Fixed cost + Variable cost

Therefore, the slope intercept form is given by
