Pablo teaches salsa dancing for $20

Question

Pablo teaches salsa-dancing lessons for $20 per lesson the amount of money he makes, y is a function of how many lessons he teaches, x. If pablo taught ten lessons, what is an appropriate range for the situation described above?

Answer 1

the domain is 0<= x < infinity, and x is an integer

the range is an integral multiple of 20, specifically {0,20,40,60,80,100,.....}

We are assuming he does not teach fractional lessons.

10 lessons gets him $200