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21-04-2020
Mathematics

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Which of the following Lines has a slope of -1/2

1. x-2y=0
2. -x+2y=0
3. x+2y=0

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Аноним Аноним

21-04-2020

If you solve all the equations for y, i.e. you write write all the lines in the form

[tex]y=mx[/tex]

then [tex]m[/tex] is the slope. So, you have

[tex]x-2y=0 \iff y=\dfrac{1}{2}x[/tex]

[tex]-x+2y=0 \iff y=\dfrac{1}{2}x[/tex]

[tex]x+2y=0 \iff y=-\dfrac{1}{2}x[/tex]

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