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ss7ja [257]
2 years ago
8

What is the image of the point (-5, 6) after a rotation of 90°

Mathematics
1 answer:
ycow [4]2 years ago
3 0

Answer:

(-6, -5)

Step-by-step explanation:

rule for 90° counterclockwise about the origin:

(x, y) => (-y, x)

so:

(-5, 6) => (-6, -5)

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What multiplies to be -18 and adds to be -9?
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If you're trying to factor a quadratic in Algebra I:
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Try using splitting the middle or the quadratic formula instead.

Here's how you would solve it from a more advanced approach.
If you don't know what this stuff is, just ignore it.
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Substitute this for a in the first equation.
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Bring over that 18.
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Apply the quadratic formula.
(a = 1, b = 9, c = -18)
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If you need to write two distinct numbers, just write out one with a + and one with a - in place of the plus-minus sign.
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