Find slope of two lines:
Points: (0, 1200); and (3, 1350)
slope = y^2 - y^1/ x^2 - x^1
= 1350 - 1200/3 - 0
= 150/3
= 50
Y = 50n + b
Point: (0, 1200), Insert that in
1200 = 50 * 0 + b
b = 1200
1200 = b
Y = 50x + 1200
50 is the rate of change for Step1:
1200 is the initial value
Step 2:
y = 50x + 1200 is the slope intercept form equation.
Hope that helps!!!! Have a great day!!!!! : )
