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1 answer:
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Answer:
1). Option A
2). Option B
Step-by-step explanation:
Question 1
Rule for the dilation of a point by a scale factor 'k' is given by the rule,
(x, y) → (kx, ky)
By this rule image of point A when dilated by the scale factor = 1.25,
A(-12, -8) → A'[(-12 × 1.25), (-8 × 1.25)]
→ A'(-15, -10)
Option A will be the answer.
Question 2
Scale factor =
From the figure attached,
Scale factor =
=
=
Therefore, rule for the dilation of ABC to form image triangle A'B'C' will be,
(x, y) →
Option B will be the answer.