Answer:
A' (6, -2)
B' (4, 2)
C' (10, 6)
Step-by-step explanation:
When you dilate by a scale factor of 2 about the origin, multiply each coordinate point by 2.
(3, -1) × 2 = (6, -2)
(2, 1) × 2 = (4, 2)
(5, 3) × 2 = (10, 6)
BC= 20 units
Since ∆ ABC is an equilateral triangle, all the sides are equal in length.
AC= BC
=>-y+23= 6y+2
=>-y-6y= 2-23
=>-7y= -21
=>y= 21/7
=>y= 3
BC = 6y+2 = 6(3)+2 = 18+2 = 20 units
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(0,-22)
