What is the equation of the axis of symmetry of the graph of y=ax^2+bx+c
2 answers:
That would be x=-b/(2a)
that sounds crazy but it works
for all y=ax²+bx+c, the axis of symmetry is
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 
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➷ Standard deviation = 
Substitute the values in:
= 8.1975...
This can be rounded to give an approximate answer of 8.2
The answer is option A.
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Add 4/10 to 9/10.
9/10 + 4/10 = 13/10
Simplify 13/10 into a mixed number by subtracting 10 from the numerator and turning it into a whole.
13/10 ⇒ 1 3/10
<h2>Answer:</h2>
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Answer:
1,295 I believe
Step-by-step explanation:
19,758 - 18,500 = 1,295.