Which of the following sets of points are reflections of each other across the x-axis?

a. (-5, 6) → (5, -6)

b. (-5, 6) → (6, -5)

c. (-5, 6) → (5, 6)

d> (-5, 6) → (-5, -6)

D

Step-by-step explanation:

Under a reflection in the x- axis

a point (x, y ) → (x, - y )

Thus

(- 5, 6 ) → (- 5, - 6 ) → D

D> (-5, 6) → (-5, -6)

Step-by-step explanation:

Two points are reflections of each other across the x-axis if their

x-coordinates are equal

and

y-coordinates are opposite

gdp is the best phrase!

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