5x+y=-2 direct variation yes or no

Mathematics

1 answer:

sasho [114]4 years ago

7 0

Yes because if you rearrange the equation to y=mx+b it would be this
y=5x-2

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1. From the attached graph you can see that

function is positive for $x\in \left(-\infrty, \dfrac{-15-\sqrt{513} }{4}\right)\cup \left(0,\dfrac{-15+\sqrt{513} }{4}\right);$
function is negative for $x\in \left(\dfrac{-15-\sqrt{513} }{4},0\right)\cup \left(\dfrac{-15+\sqrt{513} }{4},\infty\right).$