document.write( "Question 609829: write the equation of the line that is tangent to the circle 25= x^2+y^2 at the point (3,4) \n" ); document.write( "

Algebra.Com's Answer #383992 by ewatrrr(24785) $\"\"$ $\"About$

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document.write( "Hi
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document.write( "Note: Standard Form of an Equation of a Circle is  
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document.write( "where Pt(h,k) is the center and r is the radius
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document.write( "  ||Vertex(0,0), radius of 5
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document.write( "line that is tangent to the circle 25= x^2+y^2 at the point (3,4)
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document.write( "(3,4)
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document.write( "(0,0) m = 4/3, which is the slope of the radius, slope of the tangent line = -(3/4)
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document.write( "  y = (-3/4)x + b
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document.write( "  4 = (-3/4)3 + b, b = 25/4  and y =  (-3/4)x + 25/4
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document.write( "See below descriptions of various conics                         
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document.write( "Standard Form of an Equation of a Circle is  
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document.write( "where Pt(h,k) is the center and r is the radius\r
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document.write( " Standard Form of an Equation of an Ellipse is  where Pt(h,k) is the center. (a positioned to correspond with major axis)
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document.write( " a and b  are the respective vertices distances from center and ąare the foci distances from center: a > b\r
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document.write( "Standard Form of an Equation of an Hyperbola opening right and  left is:
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document.write( "   where Pt(h,k) is a center  with vertices 'a' units right and left of center.\r
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document.write( "Standard Form of an Equation of an Hyperbola opening up and down is:
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document.write( "   where Pt(h,k) is a center  with vertices 'b' units up and down from center.\r
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document.write( "the vertex form of a parabola opening up or down,  where(h,k) is the vertex.
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document.write( "The standard form is , where  the focus is (h,k + p)\r
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document.write( "the vertex form of a parabola opening right or left,  where(h,k) is the vertex.
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document.write( "The standard form is , where  the focus is (h +p,k ) \n" );
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