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Math Help - Given that -5≤x≤5 and -10≤y≤-2, find

  1. #1
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    Given that -5≤x≤5 and -10≤y≤-2, find

    Question:
    Given that -5 ≤ x ≤ 5 and -10 ≤ y ≤ -2, find
    (a) the smallest possible value of 3x-2y,
    (b) the greatest possible value of y^2-x^2

    Is there any mathematical way to solve this?

    Thanks
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  2. #2
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    Re: Given that -5≤x≤5 and -10≤y≤-2, find

    Quote Originally Posted by FailInMaths View Post
    Question:
    Given that -5 ≤ x ≤ 5 and -10 ≤ y ≤ -2, find
    (a) the smallest possible value of 3x-2y,
    (b) the greatest possible value of y^2-x^2

    Is there any mathematical way to solve this?

    Thanks
    By inspection:

    3(-5)-2(-2) = ....

    (-10)^2 - (0)^2 = ....
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  3. #3
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    Re: Given that -5≤x≤5 and -10≤y≤-2, find

    Quote Originally Posted by mr fantastic View Post
    By inspection:

    3(-5)-2(-2) = ....

    (-10)^2 - (0)^2 = ....
    Thanks
    Follow Math Help Forum on Facebook and Google+

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