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Linear transformations

  • 15-12-2006 7:39pm
    #1
    Splicer
    Banned (with Prison Access) Posts: 58 ✭✭


    Heya
    We were doin linear transformations there is class. If anyone is using TEXT + TESTS 5, have u noticed that in a lot of the answers in the back of the book they are missing dashed above x and y? (x', y'). Is that a mistake in the book or am I making it?...


Comments

  • #2
    PeterMC
    Registered Users, Registered Users 2 Posts: 54 ✭✭PeterMC


    as far as I remember, the answers in the back convert the answer back into normal x's and y's, as opposed to leaving them with the dashes!


  • #3
    maglite
    Registered Users, Registered Users 2 Posts: 1,783 ✭✭✭maglite


    they give the equation of the new line

    in your Q it is hilighted by putting in a X'

    a line only consists of X And Y


  • #4
    Splicer
    Banned (with Prison Access) Posts: 58 ✭✭Splicer


    Well, no. I don't have the book with me at the moment but sometimes it asks you to get the eqn of the line in terms of x' and y' but then i get the answer, something like x' + 3y' = 5, but the end of the book says x + 3y = 5. See what I mean?


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