What set of transformations is performed on triangle ABC to form triangle A'B'C'?
A translation 5 units up, followed by a 270-degree counterclockwise rotation about the origin
A 270-degree counterclockwise rotation about the origin, followed by a translation 5 units up
A 180-degree counterclockwise rotation about the origin, followed by a translation 5 units to the right
A translation 5 units to the right, followed by a 180-degree counterclockwise rotation about the origin
https://gyazo.com/ad53863b672f5baeb0524947a9a9c721

- anonymous

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- anonymous

I think it's a

- Mehek14

not A

- anonymous

I suck at this XD

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## More answers

- Mehek14

it could be C if it was 5 units to the `left` not right

- anonymous

Ohhh

- Mehek14

but it's going to be D

- anonymous

Yeah I guess :P

- Mehek14

I used point B (-3,-1)
5 units to the right
(2,-1)
rotation 180 rule (-x,-y)
B'(-2,1)

- Mehek14

and that matches the graph so D is correct

- anonymous

Ok :) thanks XD I got one more question that's confusing

- anonymous

Should I ask it in here or make another question?

- Mehek14

your choice :)

- anonymous

Which two sets of angles are corresponding angles?
∠e and ∠h; ∠f and ∠g
∠e and ∠i; ∠f and ∠h
∠e and ∠g; ∠f and ∠h
∠e and ∠i; ∠f and ∠g
https://gyazo.com/4b20ecf39cfe153a3a232432da28ec14

- Mehek14

|dw:1444599412662:dw|

- Mehek14

the angles with the same number of curves are corresponding

- anonymous

OHH... I DIDN'T KNOW THAT. That would have made my math class alot easier if I did XD

- Mehek14

:)

- anonymous

So C is the answer?

- Mehek14

yup

- anonymous

You're really good at this XD I'll ask for help when I need it again

- Mehek14

ok :)

- anonymous

Welp I need help again, on the bright side I got through 5 other problems while we did that one

- anonymous

That. didnt take long xD

- anonymous

Which set of transformations has been performed on triangle PQR to form triangle P'Q'R'?
Dilation by a scale factor of fraction 1 over 2 followed by reflection about the x-axis
Dilation by a scale factor of 2 followed by reflection about the x-axis
Dilation by a scale factor of fraction 1 over 2 followed by reflection about the y-axis
Dilation by a scale factor of 2 followed by reflection about the y-axis
https://gyazo.com/98150d5056ac2a00f3ca3873833050b9

- Mehek14

dilation is 1/2 because the new image became smaller

- Mehek14

and it was reflected over the x axis

- Mehek14

so A

- anonymous

Ohh...

- anonymous

Read the following statement:
Line segment CD is congruent to line segment EF.
Which of the following is an equivalent statement?
CD overbar similar to EF overbar
CD overbar equal to EF overbar
CD overbar element to EF overbar
CD overbar congruent to EF overbar

- anonymous

I really dont get this o-o there's no numbers ;-;

- anonymous

Maybe A?

- Mehek14

not similar
im not sure about this question

- Mehek14

i would probably go with D
but im not 100% sure

- anonymous

Ok :s

- anonymous

*o* TWO QUESTIONS LEFT YESSSS

- anonymous

A student writes an incorrect step while checking if the sum of the measures of the two remote interior angles of triangle ABC below is equal to the measure of the exterior angle.
Step 1: m∠x + m∠y + m∠z = 90 degrees (sum of adjacent angles)
Step 2: m∠w + m∠z = 180 degrees (supplementary angles)
Step 3: Therefore, m∠x + m∠y + m∠z = m∠w + m∠z
Step 4: So, m∠x + m∠y = m∠w
In which step did the student first make a mistake and how can it be corrected?
Step 1; it should be m∠x + m∠y + m∠z = 180 degrees (sum of angles of a triangle)
Step 1; it should be m∠x + m∠y + m∠z = 180 degrees (corresponding angles)
Step 2; it should be m∠w + m∠z = 90 degrees (supplementary angles)
Step 2; it should be m∠w + m∠z = 90 degrees (adjacent angles)
https://gyazo.com/8fc7189cdfc7287eba30b124d157165a

- Mehek14

A

- anonymous

Let's see what I got :)

- anonymous

100%!!!!!!

- anonymous

Omg tysm!

- Mehek14

yw :)

- anonymous

My grade was already a B so I guess it's an A now :P

- Mehek14

well i have to go now :)

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