Hwan decides to lose weight before the wrestling season begins. He weighs 148 pounds now and loses one pound per week for six weeks. Let y represent Hwan’s weight and let x represent the time in weeks. What is the slope of the line?
What is the y intercept

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  1. y = -x + 148

    compare with y = mx + b
    where m is the slope and b is the y-intercept

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  2. Wait so the slope is -x and y intercept is 148?

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  3. not quite.

    the slope is m, so the m part of y = -x + 148 is -1
    so the slope is -1
    (which is what the question stated directly)

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