We will assign a number to a line, which we call slope, that will give us a measure of the "steepness" or "direction" of the line. It is often convenient to use a special notation to distinguish between the rectan- gular coordinates of two different points.

Here is a sketch of this graph.

Graphs of Exponential Functions |
It will also play a very big roll in Trigonometry Math and Calculus Math,or Earlier in the text section 1. |

How To Graph |
We would like to begin looking at the transformations of the graphs of functions. |

Your Answer |
Algebraic functions are functions which can be expressed using arithmetic operations and whose values are either rational or a root of a rational number. |

Write an equation for the translation of y=5/x that has the asymptotes x=6 and |
Site Navigation Conic Sections: Hyperbolas In this lesson you will learn how to write equations of hyperbolas and graphs of hyperbolas will be compared to their equations. |

Graphing Cubic Functions |
It will also play a very big roll in Trigonometry Math and Calculus Math,or |

First, notice that the graph is in two pieces. Almost all rational functions will have graphs in multiple pieces like this. Next, notice that this graph does not have any intercepts of any kind. For rational functions this may seem like a mess to deal with.

However, there is a nice fact about rational functions that we can use here. In other words, to determine if a rational function is ever zero all that we need to do is set the numerator equal to zero and solve.

Once we have these solutions we just need to check that none of them make the denominator zero as well. This line is called a vertical asymptote. This line is called a horizontal asymptote. Here are the general definitions of the two asymptotes.

It only needs to approach it on one side in order for it to be a horizontal asymptote. Determining asymptotes is actually a fairly simple process. We then have the following facts about asymptotes.

The process for graphing a rational function is fairly simple. Process for Graphing a Rational Function Find the intercepts, if there are any. Find the vertical asymptotes by setting the denominator equal to zero and solving.

Find the horizontal asymptote, if it exits, using the fact above. The vertical asymptotes will divide the number line into regions. In each region graph at least one point in each region.

This point will tell us whether the graph will be above or below the horizontal asymptote and if we need to we should get several points to determine the general shape of the graph. Example 1 Sketch the graph of the following function.

Now, the largest exponent in the numerator and denominator is 1 and so by the fact there will be a horizontal asymptote at the line. Note that the asymptotes are shown as dotted lines.

Example 2 Sketch the graph of the following function.Consider the following possible graphs for the equation y = (5x-3)², where we have translated first in the top graph and scaled first in the bottom graph.

How do we know which is correct. One simple manner to do so is to plug some different values of x into the equation y = (5x-3)² and compare the resulting y-values to each of the graphs.

If the graph of a quadratic function has two x-intercepts, then the line of symmetry is the vertical line through the midpoint of the x-intercepts. The x-intercepts of the graph above are at -5 and 3.

Want to write an equation to translate the graph of an absolute value equation? This tutorial takes you through that process step-by-step! Take an absolute value equation and perform a vertical and horizontal translation to create a new equation.

Watch it all in this tutorial. Write the quadratic equation. b. Graph the function. c. Find the vertex of the quadratic function. a. A quadratic function that has been translated 4 units left and 3 units up Equation: Vertex: b. A quadratic function that has been reflected over the x-axis and translated 5 units left and 3 units down.

Sometimes you'll be given a point, or a graph with clearly-plotted points, and told to translate the point(s) according to some rule.

In other words, they won't be giving you a function, per se, to move (so you won't be able to use your graphing calculator to check your work); instead, you'll be given points to move, and you'll have to know how. So, if we were to graph y=2-x, the graph would be a reflection about the y-axis of y=2 x and the function would be equivalent to y=(1/2) x.

The graph of y=2 -x is shown to the right. Properties of exponential function and its graph when the base is between 0 and 1 are given.

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Equation of a translated parabola, The parabola whose axis of symmetry is parallel to the y-axis