Homework Help: Pre-Algebra

Posted by Joy on Thursday, May 22, 2008 at 11:49pm.

How do you find an equation if you only a have a graph. Like, its already graphed??

Pre-Algebra - A!@#$%^&a, Saturday, May 24, 2008 at 5:37am
If it is a graph of a line then check the point on the y axis where it cuts call it c(include the negative sign if cutting negative y axis)
Locate any to points on the line and find the gradient(m)
so the equation is y = mx + c

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