# Plot Graph

Please explain how to make a plot graph

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...is first degree. (if it was x-square we should say that the function is second degree function and graph will be a curve not linear)

-than we need to calculate two reference points to plot this linear graph.

first point; we are going to run this function for x = 0,

y = 3x + 6

y = 3*(0) + 6 (because x = 0)

y = 0 + 6

y = 6

therefore our first reference point is (x=0;y=6) = (0;6)

second point; we are going to run this this function for another any x value, for example we can take x = 2,

y = 3x + 6

y = 3*(2) + 6

y = 6 + 6

y = 12

therefore our second reference point is (x=2;y=12) = (2;12)

now we are ready to plot our function y = 3x +6,

draw the X and Y axes, ...