Question

Algebra help.

Answer 1

Describe the graph and identify the domain and range for each.
1. y^2-2x^2=16
2.3x^2+3y^2-12=0
3.9x^2-25y^2=225
4. 36-4x^2-9y^2=0
Identify the vertex, focus, and directrix of each parabola.
5. y=3x^2
6. x=4(y+2)^2
7.y+1=(x-3)^2
8.vertex(-5, 4); focus (-5, 0)

Answer 2

This isn't a test just practice work. but I don't understand any of them.