SOLUTION: rewrite the equation -8x -5y = -45 as a function of x

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Question 115667: rewrite the equation -8x -5y = -45 as a function of x
Answer by jim_thompson5910(35256) About Me  (Show Source):
You can put this solution on YOUR website!
Solved by pluggable solver: Converting Linear Equations in Standard form to Slope-Intercept Form (and vice versa)
Convert from standard form (Ax+By = C) to slope-intercept form (y = mx+b)


-8x-5y=-45 Start with the given equation


-8x-5y%2B8x=-45%2B8x Add 8x to both sides


-5y=8x-45 Simplify


%28-5y%29%2F%28-5%29=%288x-45%29%2F%28-5%29 Divide both sides by -5 to isolate y


y+=+%288x%29%2F%28-5%29%2B%28-45%29%2F%28-5%29 Break up the fraction on the right hand side


y+=+%28-8%2F5%29x%2B9 Reduce and simplify


The original equation -8x-5y=-45 (standard form) is equivalent to y+=+%28-8%2F5%29x%2B9 (slope-intercept form)


The equation y+=+%28-8%2F5%29x%2B9 is in the form y=mx%2Bb where m=-8%2F5 is the slope and b=9 is the y intercept.