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Use the drop-down menus to describe the key aspects of the function
f(x) = –x2 – 2x – 1.

Use The Dropdown Menus To Describe The Key Aspects Of The Function Fx X2 2x 1 class=

Sagot :

Answer:

Step-by-step explanation:

Given function is,

f(x) = -x² - 2x - 1

     = -(x² + 2x + 1)

     = -(x + 2)²

Comparing this equation with the vertex form of a quadratic function,

f(x) = a(x - h)² + k

Here, (h, k) is the vertex.

Vertex of the function is (-2, 0)

Leading coefficient of the function = -1

Therefore, parabola will open downwards.

Function will be increasing in the interval (-∞, -2).

Function will be decreasing in the interval (-2, -∞).

Domain of the function → (-∞, ∞)

Range of the function → (-∞, 0]

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Answer:

Step-by-step explanation:

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