Question

If triangle ABC is reflected over the x-axis, rotated 180 degrees, and reflected over the y-axis, where will point B' lie?

a (2, −7)

b (−2, 7)

c (−7, 2)

d (7, −2)

Answer 1

@dan815 @dape can some help me?

Answer 2

wat are the coordinates of point B ?

Answer 3

(-7,2)

Answer 4

there is a photo attached

Answer 5

Yes :)
reflect in x-axis, where it wud go ?

Answer 6

use this :-
reflect in x-axis : (x, y) --> (x, -y)

Answer 7

so, after reflection in x-axis,

(-7, 2) --> (-7, -2)

Answer 8

next, rotate the point 180 degrees around origin

Answer 9

am i rite (7,-2 ) is the answer

Answer 10

Excellent !!
180 degrees rotation takes (-7, -2) to (7, 2)

after that,
reflection in y axis takes (7, 2) to (7, -2)

Answer 11

wait a sec. we're wrong

Answer 12

thank you now one last question sorry :)
Which one of these is not a step used when constructing an inscribed square using technology?

Create a circle using the center with given point tool.

Connect the point with a line through the center of the circle.

Mark the points of intersection between the three circles.

Create another circle with the same radius as the original.
for this one i think its the last am i rite? :)

Answer 13

180 degrees rotation takes (-7, -2) to (7, 2)

after that,
reflection in y axis takes (7, 2) to \((-7, 2)\)

Answer 14

hey i want you correct the previous q :)

Answer 15

ow ok so its (-7,2)

Answer 16

yes im inclining towards last one.
3rd one also doesnt make much sense... but ok. pick last one

Answer 17

ok :) how about the question i asked you do you think im rite?

Answer 18

Which one of these is not a step used when constructing an inscribed square using technology?

Create a circle using the center with given point tool.

Connect the point with a line through the center of the circle.

Mark the points of intersection between the three circles.

Create another circle with the same radius as the original.
for this one i think its the last am i rite? :)

Answer 19

my previous reply was for this q only

Answer 20

(-7,2) is the CORRECT answer for your first question.
for your second questin, its the last option im inclining to.. .is wat i said :)

Answer 21

are you telling me that my answer is correct :D

Answer 22

for question 2

Answer 23

yes !

Answer 24

really yay i got to answers rite :D

Answer 25

:) btw, for first q, answer is (-7,2)

Answer 26

OK thank you for all your help :)

Answer 27

np :)