<PRE><B>Question 257960</B>
(3,5) (9,9)
Y=mX+b
m=SLOPE=(Y2-Y1)/(X2-X1)
m=(9-5)/(9-3)=4/6=2/3 IS THE SLOPE.
5=2/3*3+b
5=2+b
b=5-2
b=3 ans. for the Y intercept.
Y=2X/3+3
{{{ graph( 300, 200, -6, 5, -10, 10, 2x/3 +3) }}} (graph 300x200 pixels, x from -6 to 5, y from -10 to 10, 2x/3 +3).
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