Question

Figure EFGH on the grid below represents a trapezoidal plate at its starting position on a rotating surface.

Answer 1

The plate is rotated 90° about the origin in the counterclockwise direction. In the image trapezoid, what are the coordinates of the endpoints of the side congruent to side GH?

Answer 2

Select one:
a. (-8, -4) and (-5, -2)
b. (4, -8) and (2, -5)
c. (-3, -4) and (-5, -2)
d. (4, -3) and (2, -5)

Answer 3

@Hero @ganeshie8

Answer 4

yes ur here

Answer 5

@hubbabubba i need u

Answer 6

why dont you put this on paint and rotate lol

Answer 7

90 degree rotation :-
(x, y) --> (-y, x)

Answer 8

wat are the coordinates of G ?

Answer 9

take a look at graph,
can u tell coordinates of G ?

Answer 10

Aha im here.

Answer 11

So u wanna kno the new points of GH if u move it counterclockwise?

Answer 12

@ganeshie8 can you help me complete this?

Answer 13

yes

Answer 14

90 degree rotation :-
(x, y) --> (-y, x)

Answer 15

Ok so you said if i can find the G?

Answer 16

-4,3?

Answer 17

yes, now apply the transformation

Answer 18

(x, y) --> (-y, x)

(-4, 3) --> ?

Answer 19

-3,4?

Answer 20

nope try again

Answer 21

(x, y) --> (-y, x)

(-4, 3) --> (-3, -4)

Answer 22

^^

Answer 23

Ohhh I'm looking at it now so i dont just change the 4 to a positive just cause it switched. Got It

Answer 24

So this means the answer is C , Correct?

Answer 25

you got it !b