Question

Suri charges by the day to walk a dog. She charges $6.25 for 5 days and $8.75 for 7 days. Which equation represents this relationship? A y=7x B y = 2.50xC y = 1.25x D y=5x

Answer 1

Let x represent the number of days and let y represent the amount charged for x days.

We were told that she charges $6.25 for 5 days and $8.75 for 7 days. In either cases, the amount that she charges per day is

6.25/5 = 8.75/5 = 1.25

Thus, the equation representing this relationship is

y = 1.25x

where 1.25 represents the slope of the equation

Option C is correct