What is the ordered pair of C′ after point C (1, 2) is rotated 90° clockwise?
2 answers:
Answer: (2,-1)
Step-by-step explanation:
The rule for rotation of a shape about 90° clockwise is given by :-
[i.e. interchange x by y and y by negative of x ]
Given point : C (1, 2)
When point C is rotated 90° clockwise , then the ordered pair for its image C' will be :-
Hence, the ordered pair of C′ after point C (1, 2) is rotated 90° clockwise = (2,-1).
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Answer:
or
Step-by-step explanation:
Substitution means plugging in one variable's value that consists of the opposite variable. Because is already specified, you can plug it into the second equation's
value. After doing that, it looks like this:
Then you would distribute the across the parentheses next to it, like this:
Then, add like terms, like this:
Then divide both side by to isolate
.
Now, you can plug (
) into either equation, but the first one seems simpler so you would pick that. It would look like this:
Solving would look like this:
So the answer is or
.