Question 820459
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Hi,
find the slope 
y+1 = -9(x-7)
Using the point-slope form, {{{y - y[1] = m(x - x[1])}}}
slope m = -9   and line passes thru  P(7,-1)
{{{drawing(300,300,   -10,10,-10,100,  
 grid(1),
circle(7, -1,0.4),
circle(0, 62,0.4),
graph( 300, 300, -10,10,-10,100,0, -9x + 62))}}}