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seropon [69]
3 years ago
10

What does this mean exactly?​

Mathematics
1 answer:
bekas [8.4K]3 years ago
6 0

Answer: Choice B  y \le 0

========================================================

Explanation:

They want to know what are all the possible y values here. The range is the set of all possible outputs of a function.

The largest y value is y = 0 which occurs at the vertex, in this case the highest point. There is no smallest y value as those arrows point downward forever.

So y is between negative infinity and 0, which means we write -\infty < y \le 0

Converting that to interval notation leads to (-\infty, 0]. Note the square bracket to include the endpoint.

The compound inequality -\infty < y \le 0 simplifies to y \le 0

One way to describe this particular relation's range is to say "The set of negative real numbers with 0 included".

Side note: The domain is the set of all possible x inputs. In this case, the domain is the set of all real numbers.

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The answer is 15 units ^2

4 0
3 years ago
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cupoosta [38]
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8 0
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Answer:

b

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Distribute parenthesis and collect like terms, noting that the second parenthesis is distributed by - 1

(4x² - 8xy +2y²) - (9x² - 4xy - 7y²)

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= (4x² - 9x²) + (- 8xy + 4xy) + (2y² + 7y²)

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