Pre-algebra

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Find the equation of a line that contains (-2, -2) and is perpendicular to y= -x+3

  • Pre-algebra -

    Since it is perpendicular its slope must be +1

    equation:
    y = x + b
    but (-2,-2) lies on it, so
    -2 = -2+b
    b = 0

    the new equation is y = x

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