A certain game is played on a board that shows a portion of the xy-coo

Question

A certain game is played on a board that shows a portion of the xy-coordinate plane. During one move in the game, a marker at a point (a,b) is first moved to the point (b,a) and then moved 3 units to the left. During such a move, a marker that is at (4,3) will be moved to

A) (0,4)

B) (3,1)

C) (3,7)

D) (4,7)

E) (7,4)

A) (0,4)

B) (3,1)

C) (3,7)

D) (4,7)

E) (7,4)

Charli08 · Answer

Point (a,b) = (4,3) = (x,y)

First move = (b,a) = (3,4)

Second move 3 to the left (x-3) = (0,4)

==>  A

desertEagle · Answer

Move is 
(a,b) --> (b,a) --> (b-3, a)

So, (4,3) --> (3,4) --> (0,4)

Ans is A

AnirudhaS · Answer

Step 1: (a,b) --> (b,a)
So (4,3) --> (3,4)

Step 2: Move 3 units left
So (3,4) --> (0,4)

Answer:  A

ckinney1629 · Answer

Bunuel  Can you please explain why you would not start at point (4,3) on the coordinate plane? I started there and moved 3 places to the left and 4 places up, then 3 places back to get me to (4,7)

ManifestDreamMBA · Answer

Think of this as a rule of the game - During one move in the game, a marker at a point (a,b) is first moved to the point (b,a) and then moved 3 units to the left.

Now, the question is saying, if a marker is at (4,3), then it will end at? 
 a=4, b = 3 
 New position (3,4) 
 Move left (3-3,4) = (0,4)

A certain game is played on a board that shows a portion of the xy-coo

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A certain game is played on a board that shows a portion of the xy-coo

Prep Toolkit

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