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Math Help - Linear Inequalities

  1. #1
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    Post Linear Inequalities

    Determine whether point P is a solution of the linear inequality.

    1. y ≤ -2x + 1; P(2,2)

    2. x < 2; P(1,0)

    3. y ≥ 3x-2; P(0,0)

    4. y > x - 1; P(0,1)

    5. y ≥ -2/5x + 4; P(0,0)

    6. y > 5/3x - 4; P(0,1)

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  2. #2
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    Quote Originally Posted by amberkraidich View Post

    1. y ≤ -2x + 1; P(2,2)
    I do the first one so you can get the idea.
    The meaning of P(2,2) means x=2,y=2.
    So is it true that (2) \leq -2 (2) + 1?
    If so then y\leq -2x+1 is true for that point.
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  3. #3
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    In other words, put the (x,y) values you are given into the formula and do the arithmetic! See whether the inequality is true or not.
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