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graphing an equation

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I am getting stuck on graphing equations.

when something says y=1/2x-4.....I am supposed to put in numbers for x. however, I am stuck on the concept of how to divide by the fraction. Lets say x=2

y=1/2(2)-4

I am totally stumped on if I need to make two into a fration or mulitply two by the denominator.

  • graphing an equation - ,

    I think you mean
    y = x/2 - 4

    then if x = 2
    y = 1-4 = -3

  • graphing an equation - ,

    awesome. thank you sir!

  • graphing an equation - ,

    how would you graph 12x-3y=7 and x=2+13y?

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