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Math Help - Changing Polar to Rectangular Short Urgent Help

  1. #1
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    Changing Polar to Rectangular Short Urgent Help

    Transform the equation to the corresponding rectangular coordinate Equation:
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  2. #2
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    y=x.

    Let me explain.
    y=x (the upper part) makes an angle of pi/4.

    But if we consider the negative radius r, in polar coordinates we also get the lower part.
    Thus we get a full line.
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  3. #3
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    Hello, ^_^Engineer_Adam^_^!

    Transform: .θ = π/4 to rectangular form.

    Take the tangent of both sides: .tanθ .= .tan(π/4)

    and we have: .tanθ .= .1
    . . . . . . . . . . .
    . . . . . . . . . . . y
    . . . . . .then:. .-- .= .1
    . . . . . . . . . . . x

    Therefore: .y .= .x

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