Is it a function? If you said no, which x value repeats, making it not a function ?
1 answer:
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Answer:
Step-by-step explanation:
First off, your drawing is kinda inaccurate, because the looks like a right angle, but as you drew it yourself it doesn't matter too much.
We know that the sum of the angles of a triangle will always equal , so we have that
.
Combining like terms on the left side gives .
Subtracting from both sides gives
.
So, and we're done!