algebra

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I am really confused!!!

how do you make a table for solutions? For example y=2x The table of solutions shows 0,0; 1,2; -1,-2;2,4;-2,-4 The would than be plotted on a graph. What I can't figure out is how they got the pairs.

  • algebra -

    You plug in one value as 'x' to find 'y'. or vice versa.

    ex. y=2x

    I will use 1 for x

    2*1=2 so, y=2

    WHen you plot this on a graph you plot it as (1,2). 1 being on the x-axis, and 2 on the y-axis.

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