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IF THe coordinates of A are (8,0) and the coordinates of point B are (3,7) the y-intercept of AB is

User Shinnyx
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y = mx+b
m=(y2-y1)/(x2-x1)
m=(7-0)/(3-8)=-7/5=-14/10=-1.4
y = (-7/5)x+b , take point (8,0) and substitute
0 = (-7/5)8+b
b=56/5=112/10=11.2 -y intercept
y=-1.4x+11.2
User Mark Hills
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