<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:
hgjjjjjjjjjjjjjjjjggggg
Step-by-step explanation:
hggggggggggggggggggjgjjj
Answer:
9
Step-by-step explanation:
Replace a by 7
and
b by 4
and
c by 1/2
7+4(1/2)
7+2=9
I am pretty sure that the answer is A. because the slopes are reciprocals of each other, and so they are perpendicular