In the formula b y-intercept. The variable m slope. Then you use one of the points you found x 1 y 1 when you computed the slope m and put it into the point slope equation.
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In the formula b y-intercept. And here in this case m is equal to 13-- so let me write that down-- m is equal to 13 and b is the y-intercept. Calculate the rise and run You can draw it on the graph if it helps. Examine the equation for the line which Excel is now displaying overlaid on the scatter plot.