Question 49997
<pre><font size = 5><b>write an equation for the line described: a line whose 
slope =3 and passes through the point (-2,7)


The point-slope formula

y - y<sub>1</sub> = m[x - x<sub>1</sub>]

gives the equation of the line with slope = m which 
passes through the point (x<sub>1</sub>,y<sub>1</sub>)

So plug in 3 for m, -2 for x<sub>1</sub>, 
and 7 for y<sub>1</sub>:

y - 7 = 3[x - (-2)]

y - 7 = 3[x + 2]

y - 7 = 3x + 6

    y = 3x + 13

Edwin</pre></font></b>