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Math

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f(x)= x2 (2=squared, how to graph this?

how to solve this?

f(x)= 3x-3
g(x)= 2x-5

f(4)=?
f(5)=?
g(3)=?
g(4)=?

  • Math - ,

    make a table of values for x and y
    (f(x) is really y,
    f(x) = x^2 is the same as y = x^2

    x y
    0 0
    1 1
    2 4
    3 9
    -1 1
    -2 4
    -3 9

    graph these points, they should give you a good outline of the curve.

    for something like
    f(x) = 3x - 3

    then f(4) = 3(4)-3 = 9

    wherever I saw an x, I subbed in a 4

    you can now do the rest

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