Question

Which of the following could be points on the unit circle?

(answer choices attached!)

***CHOOSE ALL THAT APPLY!!!!

Answer 1

answer choices A,B,C,D from top to bottom...

im not really sure on this one... pls explain! thanks! :)

***choose ALL that apply :)

Answer 2

thanks for coming :) do y'all get this one?

Answer 3

The equation of the unit circle is x^2 + y^2 = 1
Any point that makes the equation true is a point on the unit circle.

Answer 4

okay lemme try plugging em in... one sec!

Answer 5

i tried the first one and it didn't work...... i got 1.34... did i do that right?? so A is WRONG right? :)

Answer 6

and for the second choice, i got 1.4444444... so that's wrong also right?

Answer 7

but (1,1) =1 when i plug in so C is an answer right?! :)

Answer 8

Try the second one again.

Answer 9

and for the last one, i got .28... so that's wrong right?? D is NOT an answer right?

Answer 10

(1, 1)
x^2 + y^2 = 1
1^2 + 1^2 = 1?
1 + 1 = 1 Not true, so (1, 1) is not a point on the unite circle.

Answer 11

oh okay i did it again... i got 1 lol so B is an answer yes?

Answer 12

You are doing your math wrong.

Answer 13

Two work and two don't work.

Answer 14

ohhh and i see for C... lol my bad!!! :P so A and C are out... and B is an answer?

Answer 15

and lemme try D again... and D is 1 as well.. my bad.. i entered them all weird in my calc so everything was wrong.. my bad!!! LOL sorry bout that... so B and D are the answers?