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dolphi86 [110]
3 years ago
3

Five teachers were hired at Oakdale Middle School at the beginning of the 2005 school year. The performance of each teacher was

rated by the principal at the conclusion of each school year. The performance ratings are charted below. Please use this information to answer the question.
Which teacher exhibited the most variable year-to-year performance over this 5 year span?

Jill


Ed


Ralph


Sam

Mathematics
2 answers:
Lisa [10]3 years ago
7 0
Ed...................
MrRa [10]3 years ago
3 0

Answer:

Ralph

Step-by-step explanation:

Ralph's data goes from 5 to 2 to 2 to 1 to 1.  The spread of this data is larger than for any other teacher in the list.

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Answer:

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Step-by-step explanation:

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Step-by-step explanation:

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Which could be the entire interval over which the function,
Marrrta [24]

Answer:

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Step-by-step explanation:

Hi Juliadayx! How are you?

Well, maybe you already heard about the domain and the range of a function.  

The domain is the set of values that the independent variable can take (usually referred to as the letter "x"), while the range is the set of values that the dependent variable takes, which is called f(x) or function of x.

In this case, the exercise asks you to evaluate for which values of “x” (right column of the table), the function “f(x)” takes positive values (left column of the table), the positive values also include zero. And in this case you can see that the function f(x) is only positive for the values of "x": -2, -1, 0 and 1. Therefore, the answer is the entire interval (-2, 1).

I hope I've been helpful!

Regards!

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Step-by-step explanation:

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