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MA_775_DIABLO [31]
3 years ago
15

What is the RANGE of the following graph? y=-x2- 2x - 5 2

Mathematics
2 answers:
MA_775_DIABLO [31]3 years ago
7 0

Answer:

See below in bold.

Step-by-step explanation:

y = -x^2 - 2x - 5

Convert to vertex form:

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

y = - [(x + 1)^2 - 1] - 5

y = -(x + 1)^2  + 1 - 5

y = -(x + 1)^2 - 4

So the vertex of the graph is at (-1 , -4) and it is a maximum because the coefficient of x^2 is negative.

So the range is all values of f(x) up to and including -4.

In interval notation this is (-∞, -4].

yan [13]3 years ago
6 0
The range would be the number-
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