Which rule yields the dilation of the figure QRST centered at the origin?
Responses
A (x, y) → (3x, 3y)(x, y) → (3x, 3y)
B (x, y) → (
x,
y)(x, y) → ( 1 3 x, 1 3 y)
C (x, y) → (x + 3, y + 3)(x, y) → (x + 3, y + 3)
D (x, y) → (x +
, y +
)
The correct answer is A) (x, y) → (3x, 3y). This rule expresses a dilation centered at the origin which expands each coordinate of a point by a factor of 3.
Which rule yields the dilation of the figure CDEF centered at the origin?
A (x, y) → (4x, 4y)(x, y) → (4x, 4y)
B (x, y) → (0.25x, 0.25y)(x, y) → (0.25x, 0.25y)
C (x, y) → (x + 4, y + 4)(x, y) → (x + 4, y + 4)
D (x, y) → (x + 0.25, y + 0.25)