document.write( "Question 875670: a, sketch the graph of the relation
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\n" ); document.write( "c, explain with reasons whether this relation is a function. \n" ); document.write( "
Algebra.Com's Answer #528369 by ewatrrr(24785)\"\" \"About 
You can put this solution on YOUR website!
 
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document.write( "Re:TY
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document.write( "Need to Know.......................................................
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document.write( "Standard Form of an Equation of a Circle is \"%28x-h%29%5E2+%2B+%28y-k%29%5E2+=+r%5E2\" 
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document.write( "Standard Form of an Equation of an Ellipse is \"%28x-h%29%5E2%2Fa%5E2+%2B+%28y-k%29%5E2%2Fb%5E2+=+1+\" 
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document.write( "Standard Form of an Equation of an Hyperbola opening up and down is:\"%28y-k%29%5E2%2Fb%5E2+-+%28x-h%29%5E2%2Fa%5E2+=+1\" 
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document.write( "Standard Form of an Equation of an Hyperbola opening right and  left is:\"%28x-h%29%5E2%2Fa%5E2+-+%28y-k%29%5E2%2Fb%5E2+=+1\" 
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document.write( "the vertex form of a Parabola opening up(a>0) or down(a<0), \"y=a%28x-h%29%5E2+%2Bk\"
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document.write( " the vertex form of a Parabola opening right(a>0) or left(a<0), \"x=a%28y-k%29%5E2+%2Bh\"
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document.write( "where(h,k) is the vertex and  y = k  is the Line of Symmetry\r
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document.write( "x = (y-4)^2 -2  Parabola Opening right along y = 4, V(-2,4)
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document.write( "y = 4 ± sqrt(x+2), Domain x > -2
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document.write( "c: not a function, will not satisfy the vertical line test. Note x = 5 (Blue vertical line)
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document.write( "(2 values of y for one x-value )
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