Question

The amount a babysitter earns can be described as a = 9t, where a is the amount earned in dollars and t is the time worked in hours . What does the ordered pair (5, 45) mean with regard to this equation?

Answer 1

In the ordered pair (5, 45) we have

5 = t,

45 = a

45 = 5 x 9

That means when the babysitter works for 5 hours, she earns 45 dollars.