Question 1100836
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The equation of the line that contains the point (a,b) and has the slope "m" is

y - b = m*(x - a).



In your case the equation of this line is

y - (-8) = 3*(x-(-8)),  or, equivalently,

y + 8 = 3*(x+8).



You can further transform it to any other desired form.
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