megan2001 megan2001

14-05-2019
Mathematics

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The line of symmetry for the quadratic equation y = ax2 - 2x - 3 is x = 1. What is the value of "a"?

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amymatthews amymatthews

14-05-2019

Answer:

a = -1

Step-by-step explanation:

The line of symmetry equation is -b/2a

b = -2

c = -3

[tex]-1=\frac{2}{2a}[/tex]

so multiply the 2a.

-2a = 2

divide by -2

a = -1

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