(40 points please explain your answer) If triangle ABC is reflected over the y‐axis, reflected over the x‐axis, and rotated 180 degrees, where will point A' lie?

(−1, 2)
(−2, 1)
(1, −2)
(2, −1)

(-2, 1)

Step-by-step explanation:

I'm doing the test now and I drew it out. If you reflect A over the Y axis then it will lie at 2, 1. Then if you flip it over the Y axis it is at 2, -1. Then when rotating something 180 degrees you just switch the signs of the numbers and get -2, 1.

step by step resolutions

1) n+n+1+n+2=51

3n+3=51

3n=48

n=16

the three numbers are 16, 17 and 18.

2) x+15=4x

3x=15

x=5

radha is now 5 years old

3) the two digits are x and y.

y=3x

(10x+y)+(10y+x)=88

y=3x

11x+11y=88

y=3x

x+y=8

x+3x=8

x=2

the original number can be either 28 or 82.

4) n+(n+2)+(n+4)=48

3n+6=48

3n=42

n=14

the numbers are 14, 16 and 18.

5) y=x+3

10y+x+10x+y=143

y=x+3

11x+11y=143

y=x+3

x+y=13

x+x+3=13

2x=10

x=5

the original number can be 57 or 75.

hope this !