Use slope intercept form, y = mx + b, to find the y-intercept (b) of the line

Peaches cost $4.29 per pound. find the cost of two and a quarter pounds of peaches.

!! 10 ! a westbound jet leaves central airport traveling 635 miles per hour. at the same time, an eastbound plane departs at 325 miles per hour. in how many hours will the planes be 1900 miles apart?

What is the distance between point a and b