45.6k views
2 votes
What is the axis of symmetry for f(x) = -5x^2-20x-10

User Alperovich
by
7.7k points

1 Answer

5 votes
the axis of symmetry is a vertical line, and it can be found several ways--the easiest way in your case is to use this equation:

x = -b/2a

this helps you find the x value of your vertex; the axis of symmetry crosses your vertex. all you have to do is find the x value, because the equation of a vertical line is x =

x = (20/2(-5))
x = 20/-10
x = -2

the equation for your axis of symmetry is x = -2, which is a vertical line at -2 on the x-axis
User Javier Figueroa
by
8.2k points

No related questions found

Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.

9.4m questions

12.2m answers

Categories