notice, the 2/5 is just a "scalar" value, so you can just get the derivative of the variable part and slap the scalar as its factor.
What is the image of the point (1, 3) after a rotation of 270° counterclockwise about the origin
1 answer:
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notice, the 2/5 is just a "scalar" value, so you can just get the derivative of the variable part and slap the scalar as its factor.
M = (x₁ + x₂)/2 , (y₁ + y₂)/2
(-1, 2) =
At this point, it is easier to separate the x's and y's into two different equations:
x's: -1 =
-2 = 3 + x
-5 = x
y's: 2 =
4 = 4 + x
0 = x
Answer: (-5, 0)