Figure ABCD was reflected across the x-axis to create figure A'B'C'D'. What are the coordinates of the pre-image of B'?

(2, –8)
(–8, –2)
(–2, 8)
(8, 2)

(- 8, - 2 )

Step-by-step explanation:

Under a reflection in the x- axis

a point (x, y ) → (x, - y )

B' (- 8, 2 ), thus

B (- 8, - 2 )

b

step-by-step explanation:

the word superfluous means unnecessary

d) 30 units^2

area of rectangle = l × b

we know,

length = 10 unit

breadth = 3 unit

applying the formula,

= l × b

= 10 × 3

= 30 unit^2

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