Question

Which graph represents the function y = -2x^2 - 5.Can someone explain how to get the answer?

Answer 1

4 because you only given the answer

Answer 2

Answer:

Refer the attached figure.

Step-by-step explanation:

Given : The function $y=-2x^2-5$

To find : The graph of the function and explanation?

Solution :

The given equation is the equation of the parabola.

Graph the parabola using the direction, vertex, focus, and axis of symmetry.

Direction: Opens Down

Vertex :  (0,-5)

Focus : $(0,-\frac{41}{8})$

Axis of symmetry : x=0

Directrix : $y=-\frac{39}{8}$

Points on the graph:

x       y

0       -5

1       -7

2       -13

Refer the attached figure.