Which rule represents a dilation with respect to the origin?
Answer
A
D sub 1 point 8 of 5 comma 10 is equal to 9 comma 14
B
D sub 1 point 8 of 5 comma 10 is equal to 9 comma 18
C
D sub 1 point 8 of 5 comma 10 is equal to 13 comma 26
D
D sub 1 point 8 of 5 comma 10 is equal to 13 comma 18
Explanation
A dilation with scale factor 1.8 centered at the origin multiplies both coordinates by 1.8. Thus (5, 10) becomes (5 × 1.8, 10 × 1.8) = (9, 18), which is choice B.
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