Homework Help: math rate of change

Posted by chelsea on Wednesday, June 8, 2011 at 7:09pm.

The points
(-1,2) and (4,y) have a slope of -4/5. What is the y- coordinate of the point (4,y)?

math rate of change - David, Wednesday, June 8, 2011 at 7:27pm
slope is rise over run which is
(y2-y1)/x2-x1) so to get y we have
y-2=-4so y =-4+2 which is -2.
math rate of change - Daven, Saturday, June 11, 2011 at 4:11pm
Does rate of change means line or slope?

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