SOLUTION: please help me. i need help i cant figure this out.
if the roots of y = x2 + 10x + 24 are(x + 6)(x + 4) , what is the axis of symmetry?
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Question 187108This question is from textbook
: please help me. i need help i cant figure this out.
if the roots of y = x2 + 10x + 24 are(x + 6)(x + 4) , what is the axis of symmetry?
This question is from textbook
Answer by solver91311(24713) (Show Source): You can put this solution on YOUR website!
First of all, 
and 
are not the roots of
They are the factors of the trinomial. x = -6 and x = -4 are the roots of:
The axis of symmetry of any polynomial equation of the form:
is the line 
where 
is the x coordinate of the vertex. The x coordinate of the vertex is given by either:
or the average of the roots:
Where 
and 
are the roots of
In your case:
or
}{2} = -5)
and the equation for the axis of symmetry is:
John
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