The line of symmetry of the parabola whose equation is y = ax2 - 4x + 3 is x = -2. What is the value of "a"?

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asked May 23, 2019 5.6k views

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Stonecrusher · Answer 1 · 2019-05-28T20:38:45+0000

For equation
y = ax² +bx +c
the line of symmetry is given by
x = -b/(2a)

Filling in the given values, we have
-2 = -(-4)/(2a)
a = 4/(2(-2)) = -1

The value of "a" is -1.

The line of symmetry of the parabola whose equation is y = ax2 - 4x + 3 is x = -2. What-example-1

The line of symmetry of the parabola whose equation is y = ax2 - 4x + 3 is x = -2. What is the value of "a"?

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