Question

# Describe in words the surface whose equation is given. \phi = \frac{\pi}{4} (select the correct answer) 1)the top half of the right circular cone with

Integrals
Describe in words the surface whose equation is given. $$\phi = \frac{\pi}{4}$$ (select the correct answer)
1)the top half of the right circular cone with vertex at the origin and axis the positive z-axis
2)the plane perpendicular to the xz-plane passing through z = x, where $$x \geq 0$$
3)the plane perpendicular to the xy-plane passing through y = x, where $$x \geq 0$$
4)the base of the right circular cone with vertex at the origin and axis the positive z-axis
5)the plane perpendicular to the yz-plane passing through z = y, where $$y \geq 0$$