Question 1108729
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Any equation in general form that is parallel to x-2y=5 will have the form x-2y=k for some constant k.<br>
Since you want the line to contain the origin, x=0 and y=0 must satisfy the equation.<br>
{{{0 - 2(0) = 0}}}
so k is 0; the equation is {{{x-2y = 0}}}