a diagram representing a function with its domain and range. The domain contains the numbers -1, 0, 3, and 9, while the range contains the numbers 0, 3, -1, and 9. Arrows indicate how each number in the domain is paired with a number in the range:

-1 maps to 0
0 maps to 3
3 maps to -1
9 maps to 9 Complete the statement.

f(3) is______??

11 answers

Based on the mappings provided in your function:

  • \(-1\) maps to \(0\)
  • \(0\) maps to \(3\)
  • \(3\) maps to \(-1\)
  • \(9\) maps to \(9\)

To find \(f(3)\), we see that \(3\) maps to \(-1\).

Therefore, the completed statement is:

f(3) is -1.

Andrea conducts a science experiment and observes that the height of a plant depends on the amount of sunlight it receives. The plant’s height is 37 centimeters, and it grows at a rate of 0.004 centimeter per hour of sunlight. If the number of hours of sunlight is represented by the variable s, which function can represent the height of the plant?

s(h) = 0.004h – 37
f(h) = 37h + 0.004
f(s) = 0.004s + 37

To represent the height of the plant as a function of the number of hours of sunlight \( s \), we need to account for the initial height of the plant (37 centimeters) and the additional height it gains with each hour of sunlight, which is 0.004 centimeters per hour.

The general form of the function can be given by:

\[ \text{Height} = \text{initial height} + (\text{growth rate} \times \text{hours of sunlight}) \]

Substituting the values into this formula, we have:

\[ \text{Height} = 37 + 0.004s \]

This means the function that represents the height of the plant based on the number of hours of sunlight \( s \) is:

\[ f(s) = 0.004s + 37 \]

Thus, the correct function that can represent the height of the plant is:

f(s) = 0.004s + 37.

The population of bobcats in northern Arizona since 2008 can be modeled using the function b(t) = –0.32t2 + 2.7t + 253.

What does t represent?

What is the domain for this function?

Which range values would not make sense for this function?

Would the graph be continuous or discrete, and why?

Let’s break down each part of your question regarding the model \( b(t) = -0.32t^2 + 2.7t + 253 \).

What does \( t \) represent?

In this context, \( t \) typically represents the number of years since 2008. For example, \( t = 0 \) would denote the year 2008, \( t = 1 \) would denote 2009, \( t = 2 \) would denote 2010, and so on.

What is the domain for this function?

The domain of this function consists of the values of \( t \) for which the population of bobcats is meaningful. Since the population model starts in 2008 and considering we are modeling a population, \( t \) can be non-negative.

If we denote the current year as \( T \), then the domain could be \( t \geq 0 \) for years 2008 onward. However, to determine the upper limit of the domain, you would need to find the point in time when the population is projected to reach zero or falls below it.

Which range values would not make sense for this function?

The range for \( b(t) \) consists of possible population values. Since a population cannot be negative, any value of \( b(t) \) below zero would not make sense. Therefore, the range values that would not make sense for this function are any negative numbers.

Would the graph be continuous or discrete, and why?

The graph of this function would be considered continuous because \( b(t) \) is a quadratic function (a polynomial function) and defines a smooth curve. In this context, time \( t \) can take on any real number value; even though you may be using discrete points (like whole years), mathematically, the function could theoretically be evaluated at any positive value of \( t \) (e.g., 0.5 years, 1.5 years), resulting in a continuous graph.

In summary:

  • \( t \) represents the number of years since 2008.
  • The domain is \( t \geq 0 \) (and may have an upper limit based on population constraints).
  • The range values that would not make sense are any negative populations.
  • The graph is continuous because it is a polynomial function.
The population of bobcats in northern Arizona since 2008 can be modeled using the function b(t) = –0.32t2 + 2.7t + 253.

What does t represent?
✔ the number of years since 2008

What is the domain for this function?
✔ t values greater than or equal to 0

Which range values would not make sense for this function?
✔ negative values

Would the graph be continuous or discrete, and why?
✔ discrete, because number of bobcats cannot be broken into fractional parts

Your responses are almost correct, but there's a clarification needed regarding whether the graph is discrete or continuous based on the context. Let's evaluate each part again:

What does \( t \) represent?

Correct: The number of years since 2008.

What is the domain for this function?

Correct: \( t \) values greater than or equal to 0 (specifically, \( t \geq 0 \)).

Which range values would not make sense for this function?

Correct: Negative values. Since populations cannot be negative, values below zero do not make sense.

Would the graph be continuous or discrete, and why?

While you suggested that the graph is discrete because the number of bobcats cannot be broken into fractional parts, the function itself is represented mathematically as a continuous function (a quadratic equation).

Correct Answer: Continuous, because the function is a polynomial (quadratic). However, you are right that in the context of real-world populations, you would only consider whole populations. So, while the graph itself is mathematically continuous, in practical terms, the population values are discrete (you can't have a fraction of a bobcat). To reconcile this, you might say:

  • Answer: The graph is continuous mathematically due to its polynomial nature, but in practical terms related to population, it is treated as discrete since the number of bobcats must be a whole number.

Your reasoning is valid, and it's important to understand both mathematical and practical interpretations!

hey whats interslavic?

Interslavic is a planned language designed to facilitate communication among speakers of various Slavic languages. It aims to be mutually intelligible for speakers of different Slavic backgrounds, allowing them to communicate more easily without needing to learn another Slavic language in-depth.

Key Features of Interslavic:

  1. Rooted in Slavic Language Elements: Interslavic draws vocabulary, grammar, and pronunciation from various Slavic languages, attempting to represent a harmonious blend of them. It seeks to incorporate elements from Russian, Polish, Czech, Slovak, Bulgarian, Croatian, and other Slavic tongues.

  2. Simplified Grammar: The grammatical structure of Interslavic is simplified compared to the more complex systems found in many individual Slavic languages, aiming for ease of use and comprehension among speakers.

  3. Intelligibility: The primary goal of Interslavic is to be easily understood by speakers of Slavic languages, even if they may not formally study Interslavic itself.

  4. Cultural and Linguistic Unity: The language serves as a tool for cultural exchange and mutual understanding among the diverse Slavic nations and people.

Interslavic is part of a broader trend of constructed languages, which include languages like Esperanto, designed for international communication. While Interslavic has not yet become widely adopted, it represents an interesting approach to linguistic unity among the Slavic peoples.

can you say Hi i am speaking interslavic right now? in interslavic

In Interslavic, you can say:

"Zdravo, ja govorim Interslavic."

This translates to "Hi, I am speaking Interslavic."

Note that Interslavic may have some variation in how it is used, as it is a constructed language, and there may be different ways to express the same idea depending on personal preferences or interpretations within the language community. However, this formulation should be widely understood among Interslavic speakers.