Which of the following would be a line of reflection that would map ABCD onto itself? y = 2
3x + y = 1
3x + y = −1
−3x + 3y = 9

step-by-step explanation:

there is a formula i can give you:

it is r^2*n*sin(360/n) divided by 2 where r represents the "radius" and n is the number of sides.

plug them in:

(10sqrt(3))^2*6*sin(360/6) divided by 2

100*3*6*sin(60) divided by 2

900*sin(60)

900*sqrt(3)/2

450*sqrt(3)

approx is 779.4 cm^2

the first one is x^2+2x+2

the second one is x^2+4

the last one is x^2-4x+8

dont know

step-by-step explanation:

i would love   to but there is no graph shown

step-by-step explanation:

i am so sorry