# Relationship between graphs and equations

### Understand the relationship between equations and their graphs | LearnZillion

In order to graph a linear equation we work in 3 steps: First we solve the equation for y. Second we make a table for our x- and y-values. From the x values we. ing of the connection between equations and their graphs eneral consensus holds within the mathematics education research community that functions are. Get an answer for 'What is the relationship between a linear equation, graph and relationship is quadratic and why? thanks alot difference of equation,graph.

### Relationships between quantities in equations and graphs (practice) | Khan Academy

Students should also have an appreciation of the advantages and disadvantages of each representation. Graphing Factor Pairs The Grade 6 Unit Prime Time covered the relationship between factor pairs of a number and rectangles with area equal to the number.

By superimposing the factor-pair rectangles for a number on top of each other, students can see the symmetry of the factor pairs. This video shows the inverse variation relationship that results when you graph those factor pairs as coordinates. Inverse variation refers to a nonlinear relationship in which the product of two variables is constant.

In the context of these rectangles, the two variables are length I and width w. Their area, or the product of the variables l and w, is constant.

## Representing functions as rules and graphs

In an inverse variation, the values of one variable decrease as the values of the other variable increase. Identifying Correlation Coefficients The correlation coefficient is a number between 1 and —1 that tells how closely a pattern of data points fits a straight line.

This video shows the correlation coefficient of various sets of data points. This video shows a geometric proof of the Pythagorean Theorem.

Growing, Growing, Growing Exponential and Linear Functions When making tables, students usually generate each value in the table by working with the previous value. Either they add a constant to the previous value in the case of linear relationships or they multiply the previous value by a constant in the case of exponential relationships. This process of generating a value from a previous value is called recursion, or iteration.

### myMath Universe

It is important to distinguish between a constant growth factor multiplicativeas illustrated in an exponential function, and the constant additive pattern in linear functions. This video illustrates successive iterations for linear and exponential growth.

Patterns in the Table of Powers In this Unit, students begin to develop understanding of the rules of exponents by examining patterns in the table of powers for the first 10 whole numbers. This video describes some of these patterns.

Frogs, Fleas, and Painted Cubes The Distributive Property and Equivalent Quadratic Expressions When a quadratic expression is written in factored form, its factors are often binomial expressions, or simply binomials. A binomial is an expression with two terms.

In this Unit, students do a bit of factoring and multiplying binomials to find equivalent expressions. This video shows how you can think of the area of a rectangle divided into four smaller rectangles as the product of two linear expressions, the result of multiplying the width by the length. When a higher viscosity leads to a decreased flow rate, the relationship between viscosity and flow rate is inverse.

Inverse relationships follow a hyperbolic pattern. Below is a graph that shows the hyperbolic shape of an inverse relationship. Quadratic formulas are often used to calculate the height of falling rocks, shooting projectiles or kicked balls.

A quadratic formula is sometimes called a second degree formula. Quadratic relationships are found in all accelerating objects e. Below is a graph that demostrates the shape of a quadratic equation. Inverse Square Law The principle in physics that the effect of certain forces, such as light, sound, and gravity, on an object varies by the inverse square of the distance between the object and the source of the force.

## Functions and linear equations

In physics, an inverse-square law is any physical law stating that a specified physical quantity or intensity is inversely proportional to the square of the distance from the source of that physical quantity. The fundamental cause for this can be understood as geometric dilution corresponding to point-source radiation into three-dimensional space.

One of the famous inverse square laws relates to the attraction of two masses. Two masses at a given distance place equal and opposite forces of attraction on one another. The magnitude of this force of attraction is given by: The graph of this equation is shown below.

More on Brightness and the inverse square law Damping Motion Damping is an influence within or upon an oscillatory system that has the effect of reducing, restricting or preventing its oscillations.

- Graph functions and relations
- Understand the relationship between equations and their graphs

In physical systems, damping is produced by processes that dissipate the energy stored in the oscillation. Examples include viscous drag in mechanical systems, resistance in electronic oscillators, and absorption and scattering of light in optical oscillators.

**Equations, tables and graphs**

Damping not based on energy loss can be important in other oscillating systems such as those that occur in biological systems. Sine Wave Relationship The graphs of the sine and cosine functions are sinusoids of different phases.

The sine wave or sinusoid is a mathematical curve that describes a smooth repetitive oscillation. It is named after the function sine, of which it is the graph. Lab Activities and Resources What are Mathematical Relationships What is a mathematical relationship and what are the different types of mathematical relationships that apply to the laboratory exercises in the following activities.

What is the relationship between how much a spring stretches and the force pulling on the spring? What is the relationship between the mass of a ball and its volume assuming a constant density? What is the relationship between the intensity of a beam of light and the distance from a light source? What is a the relationship between how the distance travels and the time in travel for an accelerating object?