/*! This file is auto-generated */ .wp-block-button__link{color:#fff;background-color:#32373c;border-radius:9999px;box-shadow:none;text-decoration:none;padding:calc(.667em + 2px) calc(1.333em + 2px);font-size:1.125em}.wp-block-file__button{background:#32373c;color:#fff;text-decoration:none} Problem 2 If the quantities \(x\) and \(y\... [FREE SOLUTION] | 91Ó°ÊÓ

91Ó°ÊÓ

If the quantities \(x\) and \(y\) are related by the equation \(y=\frac{3}{x},\) then we say that \(y\) is _____ _____ to \(x\) and the constant of _____ is 3.

Short Answer

Expert verified
y is inversely proportional to x; constant of proportionality is 3.

Step by step solution

01

Identify the Type of Relationship

When one quantity depends inversely on another, it is said to be in inverse proportion or inverse variation to that variable. This means that if y depends inversely on x, as x increases, y decreases.
02

Analyze the Given Equation

The equation given is \( y = \frac{3}{x} \). This equation represents an inverse variation since y decreases as x increases, and vice versa.
03

Replace the Blanks

Now, fill in the blanks with the appropriate terms based on the relationship identified in Step 1. The sentence becomes: \( y \) is **inversely proportional** to \( x \) and the constant of **proportionality** is 3.

Unlock Step-by-Step Solutions & Ace Your Exams!

  • Full Textbook Solutions

    Get detailed explanations and key concepts

  • Unlimited Al creation

    Al flashcards, explanations, exams and more...

  • Ads-free access

    To over 500 millions flashcards

  • Money-back guarantee

    We refund you if you fail your exam.

Over 30 million students worldwide already upgrade their learning with 91Ó°ÊÓ!

Key Concepts

These are the key concepts you need to understand to accurately answer the question.

Proportionality Constant
The concept of a proportionality constant is crucial in understanding inverse variations. When two quantities are said to be in a mathematical relationship such as inverse proportion, a constant value, known as the proportionality constant, is a vital part of this relationship.
In the equation given, \( y = \frac{3}{x} \), the number 3 is the proportionality constant. This particular constant signifies the degree of variation between two inversely proportional quantities. Whenever you see an expression like \( y = \frac{k}{x} \), you can identify \( k \) as the proportionality constant.
  • It signifies that for every unit increase in \( x \), \( y \) will proportionally decrease based on this constant.
  • The constant defines the nature and magnitude of the relationship between \( x \) and \( y \).
Thus, understanding the proportionality constant helps in predicting how one variable will react when the other is altered. It plays a pivotal role in distinguishing the specific characteristics of the inverse proportion.
Inverse Proportion
Inverse proportion, also known as inverse variation, defines a relationship where one quantity increases as the other decreases. This scenario is perfectly captured by the equation \( y = \frac{3}{x} \).
  • The term "inversely proportional" indicates that the two variables, \( x \) and \( y \), move in opposite directions.
  • Here, as \( x \) gets larger, \( y \) becomes smaller.
Inverse proportion is a mathematical relationship where the product of the two variables remains constant. In our example, \( x \times y = 3 \), preserving a constant product.
This concept is widespread in real-life applications, such as the relationship between speed and time for a fixed distance. Understanding inverse proportion allows us to model dynamic systems and predict behavior when variables are adjusted.
Mathematical Relationship
Mathematical relationships describe how two quantities interact with each other. In the given exercise, we see that \( y = \frac{3}{x} \) outlines a specific interaction where \( y \) is dependent on \( x \) in an inverse manner. Such relationships are fundamental in mathematics as they help quantify how changes in one quantity affect another.
  • Mathematical relationships can be direct or inverse. This particular example illustrates an inverse relationship.
  • Factors like the proportionality constant help define the exact nature of these relationships.
By understanding these relationships, we can better explain and predict the behaviors of different systems. Mathematical relationships are the basis for mathematical modeling used in fields like physics, engineering, economics, and many more. In this case, the equation highlights a clear inverse relationship between \( x \) and \( y \), showcasing how mathematical models can provide insights into the world around us.

One App. One Place for Learning.

All the tools & learning materials you need for study success - in one app.

Get started for free

Most popular questions from this chapter

Use a graphing device to graph the given family of lines in the same viewing rectangle. What do the lines have in common? $$ y=2+m(x+3) \text { for } m=0, \pm 0.5, \pm 1, \pm 2, \pm 6 $$

Value of a Lot The value of a building lot on Galiano Island is jointly proportional to its area and the quantity of water produced by a well on the property. A 200 \(\mathrm{ft}\) by 300 \(\mathrm{ft}\) lot has a well producing 10 gallons of water per minute, and is valued at \(\$ 48,000\) . What is the value of a 400 \(\mathrm{ft}\) by 400 \(\mathrm{ft}\) lot if the well on the lot produces 4 gallons of water per minute?

Global Warming Some scientists believe that the average surface temperature of the world has been rising steadily. The average surface temperature can be modeled by $$ T=0.02 t+15.0 $$ where \(T\) is temperature in \(^{\circ} \mathrm{C}\) and \(t\) is years since \(1950 .\) (a) What do the slope and \(T\) -intercept represent? (b) Use the equation to predict the average global surface temperature in 2050 .

What Does the Slope Mean? Suppose that the graph of the outdoor temperature over a certain period of time is a line. How is the weather changing if the slope of the line is positive? If it is negative? If it is zero?

Electrical Resistance The resistance \(R\) of a wire varies directly as its length \(L\) and inversely as the square of its diameter \(d\). (a) Write an equation that expresses this joint variation. (b) Find the constant of proportionality if a wire 1.2 \(\mathrm{m}\) long and 0.005 \(\mathrm{m}\) in diameter has a resistance of 140 ohms. (c) Find the resistance of a wire made of the same material that is 3 \(\mathrm{m}\) long and has a diameter of \(0.008 \mathrm{m} .\)

See all solutions

Recommended explanations on Math Textbooks

View all explanations

What do you think about this solution?

We value your feedback to improve our textbook solutions.

Study anywhere. Anytime. Across all devices.