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Bunuel
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Capakki
Could solve using traditional method.
using 2 point formula the equations for the 2 lines are: y= (-x)+2 & 2y=x.
Solving these, the point of intersection is (4/3,2/3) (Option A)

I Need a shorter approach.


Quad I meet so only a & B
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Capakki
Could solve using traditional method.
using 2 point formula the equations for the 2 lines are: y= (-x)+2 & 2y=x.
Solving these, the point of intersection is (4/3,2/3) (Option A)

I Need a shorter approach.

I'm not sure it's too much faster, because the equations for the two lines here turn out to be fairly simple, but with a quick sketch, you can see the intersection point must be in the first quadrant, so the answer is A or B. The equation for the first line is y = -x + 2 (we're given the y-intercept, and the line falls 2 units when it moves across 2 units, so its slope is -1), and the point in answer B clearly is not on that line, so A must be right.

stne's post above has the wrong equation for the second line (its y-intercept is zero so the equation is just y = x/2), which is why that solution arrived at an incorrect set of coordinates.
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