Answer: plot a point at (-8, -5)
The y coordinate flips from positive to negative, or vice versa, when we reflect over the horizontal x axis. The x coordinate stays the same.
The rule can be written as
You are graphing rectangle A, B, C, and D in the coordinate plane. The following are three of the vertices of the rectangle: A(-
7, -7.5), B(-3,-7.5), and C(-3, 2.5). What are the coordinates of point D? (image above)
1 answer:
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Answer:
∠ A ≈ 48°
Step-by-step explanation:
Using the Cosine rule to find an angle
cosA =
with a = 10, b = 13 and c = 11
cosA =
=
= , thus
A = (
) ≈ 48° ( to the nearest degree )