SOLUTION: find the x and y intercept and graph the equation plotting the intercepts. please show all work. -5x+8y=-40

Algebra ->  Linear-equations -> SOLUTION: find the x and y intercept and graph the equation plotting the intercepts. please show all work. -5x+8y=-40      Log On


   



Question 517642: find the x and y intercept and graph the equation plotting the intercepts. please show all work. -5x+8y=-40
Answer by lwsshak3(11628) About Me  (Show Source):
You can put this solution on YOUR website!
find the x and y intercept and graph the equation plotting the intercepts. please show all work. -5x+8y=-40
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standard form of equation for a straight line: y=mx+b, m=slope, b=y-intercept
for given equation:
-5x+8y=-40
8y=5x-40
divide by 8
y=5x/8-40/8
y=5x/8-5
y-intercept=-5
..
finding x-intercept
set y=0
0=5x/8-5
5x/8=5
5x=40
x=8
see graph below:
+graph%28+300%2C+300%2C+-10%2C+10%2C+-10%2C+10%2C5x%2F8-5%29+