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Which equation represents the axis of symmetry of the function y=-2x^2+4x-6.

a. y= 1
b. x= 1
c. x= 3
d. x= -3

User Jdnoon
by
8.3k points

2 Answers

4 votes
your  answer is x = 3
User Mewel
by
8.7k points
3 votes
For a quadratic of the form
ax² +bx +c
the axis of symmetry is
x = -b/(2a)

You have
a = -2, b = 4
so
x = -b/(2a) = -4/(-2*2)
x = 1

The appropriate choice is
b. x= 1
User Shervin Gharib
by
8.0k points

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