Question

Please help! :(

The coordinates of the midpoints of the sides of a triangle are A(0, 1), B(4, 0), and C(2, –2). Find the coordinates of the vertices of the triangle. Hint: You should plot out this problem using graph paper!

A. (–2, 1); (2, 3); (6, –2)

B. (–2, –1); (–2, 3); (5, –3)

C. (–2, –2); (0, 3); (0, –1)

D. (–2, –1); (2, 3); (6, –3)

Answer 1

all i know is trial and error using the midpoint formula on each choices ...

Answer 2

@syhna you suggest trying every choice?

Answer 3

well you dont really have to make an effort, you'll see it through the coordinates

Answer 4

look, for example if you'll examine letter A , the y coordinate of one of its midpoint should be 2... there's no positive 2 y coordinate in the given midpoints

Answer 5

I have plotted the points

Answer 6

@syhna

Answer 7

what points are those? the midpoints?

Answer 8

The points that are given to plot, what should I do now? :(

Answer 9

try this.. you are using a graphing paper right?
try to double the length of the sides...

Answer 10

oh no i dont think that'll work sorry

Answer 11

@syhna :( oh ok then

Answer 12

but the answer is d.. i guess... wait ill think of a possible solution

Answer 13

@syhna thank you so much anyway for your time and participation! it means a lot

Answer 14

the midpoint formula is (x + xsub1) / 2 and (y + ysub1)/2 right?

Answer 15

yes

Answer 16

T.T i cant think of anything

Answer 17

@syhna Don't worry about it! No problem! Thanks a lot for trying :)