Carcass wrote:

Attachment:

#greprepclub coordinate above.jpg

In the rectangular coordinate system above, the coordinates of points A and B are shown. If the dotted lines represent a second pair of coordinate axes with origin at A, and if the scale is the same on both pairs of axes, what are the coordinates of point B with respect to the second pair of axes?

(A) (-33,88)

(B) (33,.48)

(C) (33, -48)

(D) (97, 88)

(E) (97, -88)

Kudos for the right answer and explanation

65 - 32 = 33

So, point B is 33 units TO THE RIGHT of the "new origin" at (32, 68)

So, with respect to the second pair of axes, the x-coordinate of point B is 33

ELIMINATE A, D and E

We're left with answer choices B and C

At this point, we need not determine the actual y-coordinate of B (with respect to the second pair of axes)

Since point B is BELOW the "new origin" at (32, 68), we know that, with respect to the second pair of axes, the y-coordinate is NEGATIVE

ELIMINATE B

By the process of elimination, the correct answer is C

Cheers,

Brent

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Brent Hanneson – Creator of greenlighttestprep.com

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