Answer:
y = - 4x - 8
Step-by-step explanation:
From the graph we get :
slope = (-8)/2 = -4
y-intercept = -8
Steps:
1. Do a proportion
8000 pounds/4 tons= 7000 pounds/ x
2. Do 7,000 times 4 which equals 28,000
3. Do 28,000 divided by 8,000
4. Your answer is
3.5 tons
Just count up from 9:30. 5 and 1/2 hours is the answer