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Make tables and graph the following functions. Find f(4) for each using your graphs.

Given f(x)=3x-2 find f(4) then
x=4
y=10
Confused on how to find a 2nd y value please help

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Hayden
4 answers

  1. what 2nd y value? Do you have an x value different from 4? Or maybe a table?

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    Steve

  2. I have to graph the function (x,y) after solving. X is know is 4,4 and y is 10 and ?.

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    Hayden

  3. Correction I know x is 4,4 and y is 10 and ?. Would y be 0?

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    Hayden

  5. no. y = f(x) = 3x-2
    f(4) = 3*4-2 = 12-2 = 10
    f(0) = 3*0-2 = -2
    f(2/3) = 3*(2/3)-2 = 2-2 = 0
    so, the points (4,10), (0,-2), (2/3, 0) are all on the graph

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    Steve

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