BC = Rise
AB = Run
The slope,m = -5/2
How to determine slope of a straight line graph
Let's locate two points on the line, so points (-2, 7) and (2, -3) can be used.
Calculate the slope, m
m = Rise/Run
BC = Rise
AB = Run
m = (y₂ - y₁)/(x₂ - x₁)
Substituting the given points (-2, 7) and (2, -3)
m = ((-3) - 7)/{2 - (-2)
= -10/4
= -5/2
Calculate the y-intercept using equation of line and point (-2,7)
y = mx + b
7 = -5/2(-2) + b
7 = 5+b
b = 7-5
= 2
The equation is
y = -5x/2 + 2