The vertex is the maximum value
The function is increasing when x < -1
The function is decreasing when x > -1
The domain of the function is all real numbers
The range of the function is All numbers less than or equal to zero
This shows that the function is decreasing since the output will always be negative for all input values
The range and domain of the function exist on all real values
Given the function expressed as d(x) = –x^2 – 2x – 1
Write in vertex form to have:
d(x) = –x^2 – 2x – 1
d(x) = –(x^2 + 2x + 1)
d(x) = -(x+1)^2
This shows that the function is decreasing since the output will always be negative for all input values
The range and domain of the function exist on all real values
Learn more on increasing and deceasing function here: https://brainly.com/question/12940982
