Answer:
x=1
Step-by-step explanation:
So we are talking about parabola functions.
All parabolas (even if they aren't functions) have their axis of symmetry going through their vertex.
For parabola functions, your axis of symmetry is x=a number.
The "a number" part will be the x-coordinate of the vertex.
The axis of symmetry is x=1.
Answer:

Step-by-step explanation:
From the diagram, side length
is opposite to angle A and side length
is adjacent to angle A.
Recall the mnemonics SOH CAH TOA.
We use TOA, because it involves opposite and adjacent.


The correct choice is A.
Answer:
Check image
Step-by-step explanation: