Question 178723
Use the point-slope form of the line. 
{{{y-y[p]=m(x-x[p])}}}
I'll do one and leave the rest to you.
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m=4
(-3,0)
{{{y-y[p]=m(x-x[p])}}}
{{{y-0=4(x-(-3))}}}
{{{y=4(x+3)}}}
{{{y=4x+12}}}
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Here's a graph to verify the equation.
{{{drawing( 300, 300, -5, 5, -10, 10,grid( 1 ),circle( -3, 0, .2 ),graph( 300, 300, -5, 5, -10, 10, 4x+12)) }}}
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Repost a question if you get stuck.