To find slope intercept form, the formula is y=mx+b.
To find the slope, which is m, the formula is (y2 - y1) / (x2 - x1)
y2=-26
y1=-20
x2=7
x1=5
(-26--20)/(7-5)
the slope is -3
now, to find the y intercept, solve for b.
y=-3x+b
Step 1: Flip the equation.
b−3x=y
Step 2: Add 3x to both sides.
b−3x+3x=y+3xb=3x+y
use your coordinates from the table.
b=3(5)-20
b=-5
so, y=-3x-5
