Answer:
C is variable. -10 times c is equal to -0.1
Step-by-step explanation:
Equation for linear relationship is y=mx+b, where m is slope (rate of change), and b is y-intercept. Y-intercept is where you start of at. Like if I had 20 dollars and started earning 5 dollars each day, my y-intercept would be 20 dollars.
Your rate of change is $5 dollars PER HOUR, and y-intercept is $15 dollars. this is because it is a flat fee. She could walkyour dog for 5 minutes but she still charges 15 dollars.
y=5x+15
The answer to number nine is 40
X=-11.5 and y=10.5.Thae two values are the answers.