Answer
Verified
397.8k+ views
Hint: Before attempting this question, one should have prior knowledge about the circle and also remember that the equation of circle in standard form can easily give the center in form (h, k) and radius r, use this information to approach the solution of the problem.
The general equation is $ {\left( {x - h} \right)^2} + {\left( {y - k} \right)^2} = {r^2} $
Complete step-by-step answer:
Given: An equation of circle \[{x^2} + {y^2} = 2ay\], we need to draw the given circle. But we neither have a center or radius. The standard form of circle with center (h, k) and radius is given by the equation, $ {\left( {x - h} \right)^2} + {\left( {y - k} \right)^2} = {r^2} $
We need to convert the given equation in standard form in order to draw it. Let’s begin with bringing all terms to the left-hand side.
\[{x^2} + {y^2} = 2ay\]
\[{x^2} + {y^2} - 2ay = 0\]
Since, we need to make a square in form $ {\left( {x - h} \right)^2} $ and $ {\left( {y - k} \right)^2} $ . Add the $ {a^2} $ term to both sides.
\[{x^2} + {y^2} + {a^2} - 2ay = {a^2}\]
Using the algebraic identity $ {\left( {a - b} \right)^2} = {a^2} + {b^2} - 2ab $ in the above equation we get
\[{\left( {x - 0} \right)^2} + {\left( {y - a} \right)^2} = {a^2}\]
Hence, on comparing with the standard form we have center (0, a) and radius equal to a.
We located the center (0, a) and drew a circle with taking radius ‘a’.
Note: In the above question we came across the term “circle” which can be explained as the collection of points exist in the same plane where every point is equidistant from a point which is named as the center point, in the circle radius is the defined distance from the point on the circumference of the circle. The general form of the equation of circle is given as \[{x^2} + {y^2}{\text{ + }}Dx + Ey + F = 0\], where D, E and F are constants.
The general equation is $ {\left( {x - h} \right)^2} + {\left( {y - k} \right)^2} = {r^2} $
Complete step-by-step answer:
Given: An equation of circle \[{x^2} + {y^2} = 2ay\], we need to draw the given circle. But we neither have a center or radius. The standard form of circle with center (h, k) and radius is given by the equation, $ {\left( {x - h} \right)^2} + {\left( {y - k} \right)^2} = {r^2} $
We need to convert the given equation in standard form in order to draw it. Let’s begin with bringing all terms to the left-hand side.
\[{x^2} + {y^2} = 2ay\]
\[{x^2} + {y^2} - 2ay = 0\]
Since, we need to make a square in form $ {\left( {x - h} \right)^2} $ and $ {\left( {y - k} \right)^2} $ . Add the $ {a^2} $ term to both sides.
\[{x^2} + {y^2} + {a^2} - 2ay = {a^2}\]
Using the algebraic identity $ {\left( {a - b} \right)^2} = {a^2} + {b^2} - 2ab $ in the above equation we get
\[{\left( {x - 0} \right)^2} + {\left( {y - a} \right)^2} = {a^2}\]
Hence, on comparing with the standard form we have center (0, a) and radius equal to a.
We located the center (0, a) and drew a circle with taking radius ‘a’.
Note: In the above question we came across the term “circle” which can be explained as the collection of points exist in the same plane where every point is equidistant from a point which is named as the center point, in the circle radius is the defined distance from the point on the circumference of the circle. The general form of the equation of circle is given as \[{x^2} + {y^2}{\text{ + }}Dx + Ey + F = 0\], where D, E and F are constants.
Recently Updated Pages
Assertion The resistivity of a semiconductor increases class 13 physics CBSE
The Equation xxx + 2 is Satisfied when x is Equal to Class 10 Maths
How do you arrange NH4 + BF3 H2O C2H2 in increasing class 11 chemistry CBSE
Is H mCT and q mCT the same thing If so which is more class 11 chemistry CBSE
What are the possible quantum number for the last outermost class 11 chemistry CBSE
Is C2 paramagnetic or diamagnetic class 11 chemistry CBSE
Trending doubts
Difference between Prokaryotic cell and Eukaryotic class 11 biology CBSE
Fill the blanks with the suitable prepositions 1 The class 9 english CBSE
Two charges are placed at a certain distance apart class 12 physics CBSE
Difference Between Plant Cell and Animal Cell
What organs are located on the left side of your body class 11 biology CBSE
Change the following sentences into negative and interrogative class 10 english CBSE
The planet nearest to earth is A Mercury B Venus C class 6 social science CBSE
The Equation xxx + 2 is Satisfied when x is Equal to Class 10 Maths
What is BLO What is the full form of BLO class 8 social science CBSE