Module 20-The circle
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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(___)^2+(y-k)=r^2 Whats missing? | x-h
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The center of a circle is what from the formula? | (h,k)
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(x-h)^2+(y-k)^2=r^2 is in what form? | Standard
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The radius does what when put into standard form? | Squareroot
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(x-h)^2+(___)^2=r^2 whats missing? | y-k
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how would you write x^2+y^2=4 into standard form? | (x-0)^2+(y-k)^2=r^2
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How do you find the equation of a circle with center (-7,3) and a radius of 10. | (x+7)^2+(y-3)^2=100
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What is a circle? | a set of all points in a plane that are the same distance from a fixed point called the center.
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What is the distance from the center? | The radius
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What does (x,y) represent? | any point on the circle
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Review the information in the table. When you are ready to quiz yourself you can hide individual columns or the entire table. Then you can click on the empty cells to reveal the answer. Try to recall what will be displayed before clicking the empty cell.
To hide a column, click on the column name.
To hide the entire table, click on the "Hide All" button.
You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
To hide a column, click on the column name.
To hide the entire table, click on the "Hide All" button.
You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
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Created by:
steena3291
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