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Math Help - Need help to graph an equation

  1. #1
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    Need help to graph an equation

    I Have to draw the graph of the following(and show working)

    x^2+3x+y^2+y= 3/2
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  2. #2
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    Quote Originally Posted by kate1234 View Post
    I Have to draw the graph of the following(and show working)

    x^2+3x+y^2+y= 3/2
    Complete the square in both x and y:
    x^2+ 3x+ ?= (x+ a)^2
    y^2+ y+ ?= (y+b)^2

    The two "?"s will be numbers of course and you add the same numbers to the right side of the equation. The result will be something like (x+a)^2+ (y+b)^2= r^2; the graph is a circle with center at (-a, -b) and radius a.
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  3. #3
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    Smile

    Thanks so much. It was easy once I had the idea from you
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