~ WILL GIVE MEDAL + FAN ~
If triangle ABC is reflected over the y-axis, which of the following shows the coordinates for point C'?
A.(3, 7)
B.(3, −7)
C.(−3, 7)
D.(−3, −7)

Question

~ WILL GIVE MEDAL + FAN ~
If triangle ABC is reflected over the y-axis, which of the following shows the coordinates for point C'?
 A.(3, 7)
 B.(3, −7)
 C.(−3, 7)
 D.(−3, −7)

anonymous · Answer

attachment

anonymous · Answer

@LynFran @ganeshie8 @Hero @IrishBoy123 @iambatman @peachpi help please!!

anonymous · Answer

What are the coordinates for C ?

anonymous · Answer

positive 7 and i cant figure out the other number

anonymous · Answer

7 is the y-coordinate. From point C, follow the line down to the x-axis. What number is that?

anonymous · Answer

i got positive 3

anonymous · Answer

right, so C is (3, 7)

anonymous · Answer

Thank you so much!

anonymous · Answer

|dw:1441402563657:dw|

anonymous · Answer

can you put where C' would be after the reflection?

anonymous · Answer

on y or x axis?

anonymous · Answer

y

anonymous · Answer

im not sure on how to do that here

anonymous · Answer

ok, well which quadrant do you think it'd be in?

anonymous · Answer

it will be negative i think

anonymous · Answer

Basically all you have to do is change the sign on the x-coordinate of C to get C'|dw:1441402979571:dw|

anonymous · Answer

ohhhh makes sense now

anonymous · Answer

good. So what would be the coordinates for C' ?

anonymous · Answer

7 and -3?

anonymous · Answer

yes

anonymous · Answer

ohh so only the y coordinate changes

anonymous · Answer

can you help me with a similar problem? i'm kinda stuck on it