Describe what happens to the x' and y-coordinates after a point is reflected across the x- axis

1 answer:

3 0

The y coordinate would become a negative or positive depending on the number. The x coordinate stays the same. For example, if the numbers were (3,2), then they the x coordinate, 3, stays the same and the y coordinate, 2, changes to -2 (negative 2).

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31 and 81 are in the bottom corners of the triangle X is at the top . What is X?

kati45 [8]

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The top angle of the triangle is, X = 68°.

Step-by-step explanation:

Let there is a triangle named PQR with bottom corner angles ∠ P and ∠ Q and the ∠ R is the angle at the top.

Now, given that ∠ P = 31° and ∠ Q = 81° and we have to find out ∠ R i.e. X.

In Δ PQR, we know, ∠ P + ∠ Q + ∠ R = 180°

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