Step-by-step explanation:
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<u>Given</u>:
The coordinates of the points A, B and C are (3,4), (4,3) and (2,1)
The points are rotated 90° about the origin.
We need to determine the coordinates of the point C'.
<u>Coordinates of the point C':</u>
The general rule to rotate the point 90° about the origin is given by
Substituting the coordinates of the point C in the above formula, we get;
Therefore, the coordinates of the point C' is (-1,2)
Answer:
(-3,5)
Step-by-step explanation:
When you reflect over the x axis, the y value's sign changes.
So we have:
-3,5
Equation 1) y=x+3
Equation 2) y=2x+5
Rearrange both equations so that (x) and (y) are on the same side.
1) -x+y=3
2) -2x+y=5
Subtract equations with each other.
x=-2
Plug in -2 for (x) in equation 1.
y=(-2)+3
Simplify.
y=1
(-2, 1)
~Hope I helped!~