Write the equation of the axis of symmetty, and find the coordinates of the vertex of the graph of y=-x2-4x+5

The axis of symmetry is x = -2 and the vertex is (-2, 9)

Step-by-step explanation:

To find the vertex of the standard form equation, use the formula x = -b/2a. Then substitute -b/2a into the equation and solve for y.

Here a = -1, b = -4 and c = 5.

Substitute the values and solve.

x = -(-4)/2(-1)

x = 4/-2

x = -2

Substitute x = -2.

y = -(-2)^2 -4(-2) + 5

y = -4 + 8 + 5

y = 9

So the axis of symmetry is x = -2 and the vertex is (-2, 9).

21

jk it's 20

step-by-step explanation: