We use cookies to personalise content and advertisements and to analyse access to our website. Furthermore, our partners for online advertising receive pseudonymised information about your use of our website. cookie policy and privacy policy.
 
+0  
 
0
274
1
avatar

The graph of the equation .\(y =ax^2 + bx + c\), where \(a\)\(b\), and \(c\) are constants, is a parabola with axis of symmetry  \(x = -3\)Find \(\frac{b}{a}\).

 Jan 13, 2018
 #1
avatar+101084 
+1

If the axis of symmetry is x  = -3, then  - 3 is the x coordinate of the vertex

 

And....the x coordinate of the vertex is given by    -b / (2a)

 

So we have that

 

-b / (2a)  =  -3

 

b / (2a)  = 3       multiply both sides by 2

 

b / a   =   6

 

 

cool cool cool

 Jan 13, 2018

10 Online Users

avatar
avatar