SOLUTION: find the line of symmetry y=3x^2-8x-5

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Question 173026This question is from textbook college algebra
: find the line of symmetry
y=3x^2-8x-5 This question is from textbook college algebra

Found 2 solutions by stanbon, checkley77:
Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
find the line of symmetry
y=3x^2-8x-5
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The axis of symmetry occurs where x = -b/2a
Your Problem:
x = 8/(2*3) = 4/3
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Cheers,
Stan H.

Answer by checkley77(12844) About Me  (Show Source):
You can put this solution on YOUR website!
Y=3X^2-8X-5
+graph%28+300%2C+200%2C+-6%2C+5%2C+-10%2C+10%2C+3x%5E2+-8x+-5%29+ (graph 300x200 pixels, x from -6 to 5, y from -10 to 10, 3x^2 -8x -5).
Using the quadratic equation we get x=3.1893 & -.5225.
(3.1893+.5225)/2=1.856 is the line of symmetry.