1.Scale Factor : 4 Enlargement or Reduction? →

G(4, -4) → G’

H(-6, 8) → H’

J(4, 6)→ J’

K(-8, -12) →K’

2.Scale Factor : 5/2

Enlargement or Reduction? →

A(6, -6) → A’

B(-10, -2) → B’

C(−8, −6)→ C’

D(4, 4) → D’

3.Scale Factor : 1/2

Enlargement or Reduction? →

L(−8, 8) → L’

M(0, 10) → M’

N(6, −4) → N’

answer: (-8,4) are the coordinates of a

step-by-step explanation:

let the side of square abcd is x .

thus the area of square abcd is .

now, by the diagram area of triangle ead= 1/2 × ea × ad = 1/2 × ea × x

( because ad is the side of square)

and, according to the question,

the areas of square abcd and right ead are equal.

⇒

⇒ea=2x

thus, ea: ab=2: 1

therefore, point a divides line segment eb into the ratio 2: 1.

⇒ by sectional formula coordinates of a are,

=

=

=(-8, 4)

thus the coordinates of a are (-8,4)