Graph f(x)= -2x + 4



We can graph this equation by Making Table

Assume values of x and substitute it to find y.



     x            y

     -1           6

      0           4

      2           0



f(x)= -2x + 4, if x = -1

    = -2(-1) + 4

    = 2 + 4

    = 6



f(x)= -2x + 4, if x = 0

    = -2(0) + 4

    = 0 + 4

    = 4



f(x)= -2x + 4, if x =2

    = -2(2) + 4

    = -4 + 4

    = 0 



Plot the points (-1,6), (0,4), (2,0) 

 

Graph looks like this:











 

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