Answer:
Vertex: (-2, 0)
Focus: (-2, 1/4)
Directrix: y = -1/(4a)
Step-by-step explanation:
Given that a parabola has a general form of:
The vertex is at:
The focus falls on the symmetry axis (x=h) of the parabola at:
The directrix is a straight line described by:
If we are given the parabola:
Then:
The vertex of the parabola is (-2, 0)
The focus of the parabola is (-2, 1/4)
The directrix of the parabola is given by the equation y = -1/(4a)
First you need to combine like terms (Which is x)
-2x+3x-4x-x+5-1 -----> x-4x-x+5-1 --------> 4x+4
The answer will be 4x+4
The water would last a very little amount of water