Answer:

Step-by-step explanation:
we know that
The quadratic equation
is a vertical parabola
The axis of symmetry in a vertical parabola is a vertical line
The equation of the axis of symmetry in a vertical parabola is equal to the x-coordinate of the vertex
The x-coordinate of the vertex is equal to the formula

therefore
the equation of the axis of symmetry is equal to 
Answer:
where is example 2?
Step-by-step explanation:
Answer:
8:3
Step-by-step explanation:
You divide them both by 5.
Answer:
GCF
Step-by-step explanation:
sorry if you dont understand