1. Questions

Algebra 2

1. Is the absolute value of 4-x >14 a disjunction or a conjunction?

2. If you have a function what is domain?

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Christian

  1. 1. Is the absolute value of 4-x >14 a disjunction or a conjunction?

    Sorry, I do not know those words. Try a Google search.
    Now the domain of this is:
    4-x > 14 or -(4-x)>14
    multiply the left one by -1
    *** That means reverse the direction of arrow
    x-4 < -14 or x-4 > +14

    add 4 to both sides of both
    x < -10 or x >18
    well the space between x= -10 and x = 18 including the end points is left out of this domain. I suppose that has some meaning in terms of your definitions.

    2. If you have a function what is domain?

    domain is where the function is defined for the dependent variable.
    For example
    y = f(x) -1 < x < +1
    has a domain between -1 and +1

    By the way "range" is the range of y values in that case

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    Damon

  2. Thanks for the help. Does anyone else know if 1 is a disjuncton or conjunction? It's for extra credit before my final.

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    Christian

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