Respuesta :
I'll start working on the rate...
 15.25- 8.5 =6.75    6.75/ 3= 2.25  <(This is the rate)
8.5- 2.25= 6.25 Â Â Â Â 6.25- 2.25= 4 <(Now I work my way to the y-intercept)
The y-intercept is 4 and the rate, which I found along the way, is 2.25.
I hope my answer satisfies you.
 15.25- 8.5 =6.75    6.75/ 3= 2.25  <(This is the rate)
8.5- 2.25= 6.25 Â Â Â Â 6.25- 2.25= 4 <(Now I work my way to the y-intercept)
The y-intercept is 4 and the rate, which I found along the way, is 2.25.
I hope my answer satisfies you.