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calculus

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equation of the tangent line to the curve y = 2x²-x+10 at the point (-1,13)

  • calculus -

    dy/dx = slope = m = 4x-1
    m = 4(-1) - 1 = -5
    so
    y = -5 x + b
    find b
    13 = -5(-1) + b
    b = 8
    so
    y = -5 x + 8

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