Given the equation of a hyperbola in standard form, locate its vertices and foci.
Determine whether the transverse axis lies on the
x - or
y -axis. Notice that
is always under the variable with the positive coefficient. So, if you set the other variable equal to zero, you can easily find the intercepts. In the case where the hyperbola is centered at the origin, the intercepts coincide with the vertices.
If the equation has the form
then the transverse axis lies on the
x -axis. The vertices are located at
and the foci are located at
If the equation has the form
then the transverse axis lies on the
y -axis. The vertices are located at
and the foci are located at
Solve for
using the equation
Solve for
using the equation
Locating a hyperbola’s vertices and foci
Identify the vertices and foci of the
hyperbola with equation
The equation has the form
so the transverse axis lies on the
y -axis. The hyperbola is centered at the origin, so the vertices serve as the
y -intercepts of the graph. To find the vertices, set
and solve for
The foci are located at
Solving for
Therefore, the vertices are located at
and the foci are located at
Just as with ellipses, writing the equation for a hyperbola in standard form allows us to calculate the key features: its center, vertices, co-vertices, foci, asymptotes, and the lengths and positions of the transverse and conjugate axes. Conversely, an equation for a hyperbola can be found given its key features. We begin by finding standard equations for hyperbolas centered at the origin. Then we will turn our attention to finding standard equations for hyperbolas centered at some point other than the origin.
Hyperbolas centered at the origin
Reviewing the standard forms given for hyperbolas centered at
we see that the vertices, co-vertices, and foci are related by the equation
Note that this equation can also be rewritten as
This relationship is used to write the equation for a hyperbola when given the coordinates of its foci and vertices.
Given the vertices and foci of a hyperbola centered at
write its equation in standard form.
Determine whether the transverse axis lies on the
x - or
y -axis.
If the given coordinates of the vertices and foci have the form
and
respectively, then the transverse axis is the
x -axis. Use the standard form
If the given coordinates of the vertices and foci have the form
and
respectively, then the transverse axis is the
y -axis. Use the standard form
Find
using the equation
Substitute the values for
and
into the standard form of the equation determined in Step 1.
Questions & Answers
Discuss the differences between taste and flavor, including how other sensory inputs contribute to our perception of flavor.
The lymphatic system plays several crucial roles in the human body, functioning as a key component of the immune system and contributing to the maintenance of fluid balance. Its main functions include:
1. Immune Response: The lymphatic system produces and transports lymphocytes, which are a type of
asegid
to transport fluids fats proteins and lymphocytes to the blood stream as lymph
Anatomy is the study of the structure of the body, while physiology is the study of the function of the body. Anatomy looks at the body's organs and systems, while physiology looks at how those organs and systems work together to keep the body functioning.
Enzymes are proteins that help speed up chemical reactions in our bodies. Enzymes are essential for digestion, liver function and much more. Too much or too little of a certain enzyme can cause health problems
Kamara
yes
Prince
how does the stomach protect itself from the damaging effects of HCl
the normal temperature is 37°c or 98.6 °Fahrenheit is important for maintaining the homeostasis in the body
the body regular this temperature through the process called thermoregulation which involves brain skin muscle and other organ working together to maintain stable internal temperature