## Spartan_Of_Ares 2 years ago What is the axis of symmetry for the graph of y = 3x2 + 6x − 4?

1. Spartan_Of_Ares

i didnt just crash

2. tcarroll010

You can get the axis of symmetry from putting the equation in the vertex form: y = 3(x^2 + 2x) - 4 y = 3(x^2 + 2x + 1) - 4 - 3 y = 3(x + 1)^2 - 7 so the vertex is (-1, -7) and the axis of symmetry is x = -1.

3. Spartan_Of_Ares

also what are the domain and range?

4. tcarroll010

This is a parabola opening upwards, so that vertex is the low-point for "y". The domain is all allowable "x" values which in this case is all numbers. The range is all "y" values and that is y >= -7.

5. tcarroll010

Good luck in all of your studies and thx for the recognition! @Spartan_Of_Ares

6. Spartan_Of_Ares

thanks =-]

7. Spartan_Of_Ares

where did you get that pic for your profile

8. tcarroll010

I got it from searching for fractals . I can't remember where though. I like mathematical art.

9. Spartan_Of_Ares

ok im going to useit as my descktop background

10. tcarroll010

go for it!