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OpenStudy (anonymous):
Help me please! Find an expression for the function whose graph is the given curve: the line segment joining the points (-3,-2) and (6,3)
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OpenStudy (alekos):
well first you need to find the slope of the line segment. know how to do that?
OpenStudy (anonymous):
There's a formula for that, right?
OpenStudy (alekos):
sure is. slope = y-step/x-step = (y2-y1)/(x2-x1)
OpenStudy (anonymous):
Oh okay, so the slope would be 5/9, right?
OpenStudy (alekos):
you got it! now we need to find the y-intercept "b" using the slope and one of the points y = mx + b and m=slope
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OpenStudy (anonymous):
So y= 5/9x + b, and then how do I find b?
OpenStudy (anonymous):
@alekos
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