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[Solved] Coordinate plane quadrants

 
Coordinate Plane
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June 15, 2021 3:10 pm
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If the point A(a, a.b) is in the second quadrant of the coordinate plane, in which quadrant is the point B()?

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June 15, 2021 3:11 pm
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Staff 
(@armor)
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If \small (x,y) is in the second quadrant, then \small x<0,y>0.

\small A(a,a.b)  is in the second quadrant, so \small a<0  and \small a.b>0.  Therefore, \small b<0 also.

For the point \small B(a^2,\frac{a}{b}),   \small a^2>0    and  \small \frac{a}{b}>0.

Hence, B is in the first quadrant.

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