jordan137 jordan137

27-01-2017
Mathematics

contestada

3x-7y=21 what is the x entercept and y entercept

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anthony12341 anthony12341

27-01-2017

to find the x-intercept set y=0 and solve for x.
3x-7y=21
3x-7(0)=21
3x=21
x=7
so, x-intercept is at (7,0)
to find the y-intercept set x=0 and solve for y.
3x-7y=21
3(0)-7y=21
-7y=21
y=-3
so, y-intercept is at (0,3)

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