3 years ago

The image of (-1, 2) reflected across the line y = -x is what?

Mathematics

1 answer:

Ann [662]3 years ago

8 0

( -2, 1 ) is the image of ( -1,2 ) reflected across the line y=-x.

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Please i need help :(

Nezavi [6.7K]

Answer:

37 units

Step-by-step explanation:

$\boxed{distance = \sqrt{(x2 - x1)^{2} + (y2 - y1)^{2} }}$

Using the distance formula above,

distance between (15, -17) and (-20, -5)

$= \sqrt{[15 - ( - 20)]^{2} + [ - 17 - ( - 5)] {}^{2} } \\ = \sqrt{(15 + 20)^{2} + ( - 17 + 5)^{2} } \\ = \sqrt{35 ^{2} + ( - 12) {}^{2} } \\ = \sqrt{1225 + 144} \\ = \sqrt{1369} \\ = 37 \: units$

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