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What is the equation of the line of symmetry of the parabola y=3x^2-12x+15?

 

 

Thank you!

 Oct 23, 2020
 #1
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it will be    x = - b/2a    

 Oct 23, 2020
 #2
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Thanks! Would you mind explaining it, if it's not any trouble? I'm having trouble understanding this 😅

Guest Oct 23, 2020
 #3
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The x coordinate of the  vertex of the standard parabola is the line of symmetry for a parabola

   to find the x value of the vertex   x = - b/2a   (derived from finding the midpoint between the zeroes from using the quadratic equation)

ElectricPavlov  Oct 23, 2020

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