document.write( "Question 915363: 1. The points A(-3,5) and B(2,4) are on a circle whose center is at O(1,c).
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document.write( "(i) Find two expressions for the radius of this circle.
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document.write( "(ii) Now find the exact value c. [Hint: Both points are the same distance from O.]
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document.write( "(iii) Write the equation of this circle.
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document.write( "(iv) Find any x- or y-intercepts of this circle. Explain algebraically your steps, and write a complete sentence explanation about the intercepts. Discuss both x and y!
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document.write( "(v) Now sketch this circle on graph paper. Label the points A, B, O and those you found in (iv), on your sketch.
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Algebra.Com's Answer #555557 by ewatrrr(24785) You can put this solution on YOUR website! A(-3,5) \n" ); document.write( "O(1, c) \n" ); document.write( "....... \n" ); document.write( " B(2,4) \n" ); document.write( "O(1, c) \n" ); document.write( "...Distance Equal \n" ); document.write( "16 + (5-c)^2 = 1 + (4-c)^2 \n" ); document.write( "16 + 25 - 10c + C^2 = 1 + 14 -8c + c^2 \n" ); document.write( "26 = 2c \n" ); document.write( "13 = c \n" ); document.write( "......... \n" ); document.write( " B(2,4) \n" ); document.write( "O(1, 13) r = sqrt( 1 + 81) = sqrt(82) \n" ); document.write( " \n" ); document.write( " \n" ); document.write( " \n" ); document.write( " |