What is the axis of symmetry for the graph of y = 3x2 + 6x − 4?

Question

anonymous · Answer

i didnt just crash

anonymous · Answer

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.

anonymous · Answer

also what are the domain and range?

anonymous · Answer

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.

anonymous · Answer

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

anonymous · Answer

thanks =-]

anonymous · Answer

where did you get that pic for your profile

anonymous · Answer

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

anonymous · Answer

ok im going to useit as my descktop background

anonymous · Answer

go for it!