All Common Core: High School - Geometry Resources
Example Questions
Example Question #5 : Derive Ellipse And Hyperbola Equations: Ccss.Math.Content.Hsg Gpe.A.3
Find the equation of an ellipse that has foci at and with a major axis distance of .
The general equation is
is the coordinates of the center of the foci.
is the distance to the foci on the x-axis from the center, and is the distance to the foci from the y-axis.
The first step is to figure out what the focal radii is.
Since we know the distance of the major axis, all we need to do is set up a simple equation.
Now solve for
The next step is to find the center between the foci.
To find the center, we simply find the average between the coordinates.
So the center of the foci is at
Now we need to figure out the distance from the center to the foci .
We do this by taking the x-coordinate from one of the foci and subtracting it from the center x-coordinate
Now the last part is to find .
We can find it by using the following equation.
We simply substitute with 1.0 and with -3.
Now we can substitute these values into the general equation to get.
Example Question #6 : Derive Ellipse And Hyperbola Equations: Ccss.Math.Content.Hsg Gpe.A.3
Find the equation of an ellipse that has foci at and with a major axis distance of .
The general equation is
is the coordinates of the center of the foci.
is the distance to the foci on the x-axis from the center, and is the distance to the foci from the y-axis.
The first step is to figure out what the focal radii is.
Since we know the distance of the major axis, all we need to do is set up a simple equation.
Now solve for
The next step is to find the center between the foci.
To find the center, we simply find the average between the coordinates.
So the center of the foci is at
Now we need to figure out what the distance from the center to where the foci is.
We do this by taking the x-coordinate from one of the foci and subtracting it from the center x-coordinate
Now the last part is to find .
We can find it by using the following equation.
We simply substitute with 9.0 and with
Now we can substitute these values into the general equation to get.
Example Question #7 : Derive Ellipse And Hyperbola Equations: Ccss.Math.Content.Hsg Gpe.A.3
Find the equation of an ellipse that has foci at and with a major axis distance of .
The general equation is
is the coordinates of the center of the foci.
is the distance to the foci on the x-axis from the center, and is the distance to the foci from the y-axis.
The first step is to figure out what the focal radii is.
Since we know the distance of the major axis, all we need to do is set up a simple equation.
Now solve for
The next step is to find the center between the foci.
To find the center, we simply find the average between the coordinates.
So the center of the foci is at
Now we need to figure out what the distance from the center to the foci is.
We do this by taking the x-coordinate from one of the foci and subtracting it from the center x-coordinate
Now the last part is to find .
We can find it by using the following equation.
We simply substitute with 6.0 and with 7
Now we can substitute these values into the general equation to get.
Example Question #8 : Derive Ellipse And Hyperbola Equations: Ccss.Math.Content.Hsg Gpe.A.3
Find the equation of an ellipse that has foci at and with a major axis distance of .
The general equation is
is the coordinates of the center of the foci.
is the distance to the foci on the x-axis from the center, and is the distance to the foci from the y-axis.
The first step is to figure out what the focal radii is ().
Since we know the distance of the major axis, all we need to do is set up a simple equation.
Now solve for
The next step is to find the center between the foci.
To find the center, we simply find the average between the coordinates.
So the center of the foci is at
Now we need to figure out what the distance from the center to the foci .
We do this by taking the x-coordinate from one of the foci and subtracting it from the center x-coordinate
Now the last part is to find .
We can find it by using the following equation.
We simply substitute with 7.0 and with
Now we can substitute these values into the general equation to get.
Example Question #9 : Derive Ellipse And Hyperbola Equations: Ccss.Math.Content.Hsg Gpe.A.3
Find the equation of an ellipse that has foci at and with a major axis distance of .
The general equation is
is the coordinates of the center of the foci.
is the distance to the foci on the x-axis from the center, and is the distance to the foci from the y-axis.
The first step is to figure out what the focal radii is ().
Since we know the distance of the major axis, all we need to do is set up a simple equation.
Now solve for
The next step is to find the center between the foci.
To find the center, we simply find the average between the coordinates.
So the center of the foci is at
Now we need to figure out what the distance from the center to the foci is ().
We do this by taking the x-coordinate from one of the foci and subtracting it from the center x-coordinate
Now the last part is to find .
We can find it by using the following equation.
We simply substitute with 9.0 and with
Now we can substitute these values into the general equation to get.
Example Question #10 : Derive Ellipse And Hyperbola Equations: Ccss.Math.Content.Hsg Gpe.A.3
Find the equation of an ellipse that has foci at and with a major axis distance of .
The general equation is
is the coordinates of the center of the foci.
is the distance to the foci on the x-axis from the center, and is the distance to the foci from the y-axis.
The first step is to figure out what the focal radii is ().
Since we know the distance of the major axis, all we need to do is set up a simple equation.
Now solve for
The next step is to find the center between the foci.
To find the center, we simply find the average between the coordinates.
So the center of the foci is at
Now we need to figure out what the distance from the center to the foci is ().
We do this by taking the x-coordinate from one of the foci and subtracting it from the center x-coordinate
Now the last part is to find .
We can find it by using the following equation.
We simply substitute with 8.0 and with
Now we can substitute these values into the general equation to get.
Example Question #31 : Expressing Geometric Properties With Equations
Find the equation of an ellipse that has foci at and with a major axis distance of .
The general equation is
is the coordinates of the center of the foci.
is the distance to the foci on the x-axis from the center, and is the distance to the foci from the y-axis.
The first step is to figure out what the focal radii is ().
Since we know the distance of the major axis, all we need to do is set up a simple equation.
Now solve for
The next step is to find the center between the foci.
To find the center, we simply find the average between the coordinates.
So the center of the foci is at
Now we need to figure out what the distance from the center to the foci is ().
We do this by taking the x-coordinate from one of the foci and subtracting it from the center x-coordinate
Now the last part is to find .
We can find it by using the following equation.
We simply substitute with 8.0 and with
Now we can substitute these values into the general equation to get.
Example Question #32 : Expressing Geometric Properties With Equations
Find the equation of an ellipse that has foci at and with a major axis distance of .
The general equation is
is the coordinates of the center of the foci.
is the distance to the foci on the x-axis from the center, and is the distance to the foci from the y-axis.
The first step is to figure out what the focal radii is ().
Since we know the distance of the major axis, all we need to do is set up a simple equation.
Now solve for
The next step is to find the center between the foci.
To find the center, we simply find the average between the coordinates.
So the center of the foci is at
Now we need to figure out what the distance from the center to the foci is ().
We do this by taking the x-coordinate from one of the foci and subtracting it from the center x-coordinate
Now the last part is to find .
We can find it by using the following equation.
We simply substitute with 1.0 and with
Now we can substitute these values into the general equation to get.
Example Question #1 : Prove Simple Geometric Theorems By Using Coordinates: Ccss.Math.Content.Hsg Gpe.B.4
True or False:
The point lies on the ellipse
True
False
False
In order to solve this problem, we need to plug in the point, and see if both sides of the equation are equal.
The point does not lie on the ellipse, because each side is not equal to each other. So our answer is False.
Example Question #2 : Prove Simple Geometric Theorems By Using Coordinates: Ccss.Math.Content.Hsg Gpe.B.4
True or False:
The point lies on the ellipse
False
True
False
In order to solve this problem, we need to plug in the point, and see if both sides of the equation are equal.
The point does not lie on the ellipse, because each side is not equal to each other. So our answer is False.
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