Given
y = 18.75x + 2500
Part A:
Based on the given equation where x is the number of hours worked. Since the coefficient of this term is 18.75, then we can conclude that Miguel's hourly rate is $18.75.
Part B:
The given equation has a constant of 2500, at x = 0, where the number of hours worked is zero, then the value of the equation is 2500. This appears that Miguel has a signing bonus, and the amount of bonus is $2500.
Part C:
Substitute y = 10000, to the equation and solve for x
Therefore, Miguel must work 400 hours to receive $10,000 in total.