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frez [133]
3 years ago
15

If triangle RED has vertices R(0,0) E(-3,4) and D(4,6), which of the following coordinates is E' of the dilation using the scale

factor 0.5?
A. E' (-1.5, 0.5)
B. E' (2, -1.5)
C. E' (-1.5, 2)
Mathematics
1 answer:
schepotkina [342]3 years ago
3 0
The coordinates of point E are
x = -3
y = 4

Multiply each coordinate by the scale factor k = 0.5
k*x = 0.5*(-3) = -1.5
k*y = 0.5*4 = 2

The new point is now (-1.5, 2) which is the location of point E'
Answer: Choice C

Side note: this is implying that the center of dilation is the origin (0,0)
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