Help ASAP
Vertex F of ΔDEF has coordinates (−3, 7). If ΔDEF is reflected over the y-axis, what are the coordinates of vertex Fʹ?

Question

Help ASAP
Vertex F of ΔDEF has coordinates (−3, 7). If ΔDEF is reflected over the y-axis, what are the coordinates of vertex Fʹ?

anonymous · Answer

Reflection over the y axis means that the sign in front of the x coordinate has changed...
In that case what is the answer?

anonymous · Answer

3,7

anonymous · Answer

Also BTW I replied to your previous question and the answer you were told of B is wrong

anonymous · Answer

Yep that would be correct

anonymous · Answer

can u help me with some more

anonymous · Answer

@Brill

anonymous · Answer

Vertex B of trapezoid ABCD has coordinates (7, −2).
 
If trapezoid ABCD is translated 3 units left, what are the coordinates of vertex Bʹ?

anonymous · Answer

Left is a horizontal movement
The x axis is a horizontal axis
So what would the new x coordinate be if you moved it 3 to the left?

anonymous · Answer

10,-2

anonymous · Answer

@rebeccaxhawaii

anonymous · Answer

No, youre close though
LEft is towards the negative
So subtract don't add
What would that be?

anonymous · Answer

I'm sorry I was late responding I was helping another person

anonymous · Answer

4,-2 @Brill

anonymous · Answer

Umm no

Here I'll help you, moving three to the left is on the horizontal axis in the negative direction

So you would do
(x-3, 7)

or in this case

(-3-3, 7)

Which is?