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anonymous

  • one year ago

please help! fan and medal

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  1. anonymous
    • one year ago
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    Let u = <5, 6>, v = <-2, -6>. Find -2u + 5v. (1 point) <-20, -42> <-20, 0> <0, 18> <-6, 0>

  2. sdfgsdfgs
    • one year ago
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    to evaluate the range for -2u+5v, you simply substitute the ranges for u and v in the eqn...

  3. sdfgsdfgs
    • one year ago
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    in this case u <5,6> and v <-2,-6>

  4. anonymous
    • one year ago
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    I have no idea...

  5. anonymous
    • one year ago
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    @sdfgsdfgs

  6. sdfgsdfgs
    • one year ago
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    the expression is -2u+5v ok? u is in between 5 and 6 and v is between -2 and -6 so far so good?

  7. anonymous
    • one year ago
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    yes

  8. anonymous
    • one year ago
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    @sdfgsdfgs

  9. sdfgsdfgs
    • one year ago
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    to find the range, we need to find the smallest and largest possible value for -2u+5v

  10. anonymous
    • one year ago
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    okay!

  11. sdfgsdfgs
    • one year ago
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    u is in between 5 and 6; which will give the smallest -2u and will give the largest -2u?

  12. anonymous
    • one year ago
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    5

  13. anonymous
    • one year ago
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    @sdfgsdfgs

  14. ganeshie8
    • one year ago
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    I think u and v are vectors here

  15. Plasmataco
    • one year ago
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    Wait. I think I got is. Dilate coordinates u by -2 so that would be (10,12). Dilate v by 5 so that would be (-10,-30). now add so you get (0,-18)

  16. anonymous
    • one year ago
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    @Plasmataco, you have the right idea but you have sign error

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