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3 years ago

5

John says the transformation rule (x, y) > (x + 4, y + 7) can be used to describe the slide of the pre-image (4, 5) to the im

age (0, –2). What was his error?

1 answer:

erik [133]3 years ago

5 0

If he used the rule (x + 4, y + 7) then pre-image (4, 5) would result in image (4 + 4, 5 + 7) = (8, 12).

He should have used the rule (x - 4, y - 7)

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$Var(X^2)= 3-(1)^2 =2$

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