Sally charges $175 for 5 hours of babysitting. How can I put that into an equation. What is the slope of the line, what is the y-intercept, is it proportional, and is it a function???????
cost per hour = 175/5 = 35
(not bad for babysitting, but then again I haven't needed a babysitter in 70 years)
cost = 35t , where t is the number of hours
slope is 35
y-intercept is 0
It is a proportion, and it is a function