y=mx+b slope intercept form
find the slope = m and y intercept =b
the y intercept is where x=0
b=-3
use any two coordinates to find slope
slope formula (0,-3) (6,0)
y²-y¹/x²-x¹ 0-(-3)/6-0=3/6 simply to 1/2
m=1/2
the slope intercept form is y=1/2x-3
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