Question 536315
Assuming you mean:
y = 2x +3
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Then you can compare this to the slope-intercept form:
y = mx + b
where
m = slope
y-intercept = (0,b)
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The slope is 2.  The y-intercept is (0,3).
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Then you only need one more point to be able to draw a line.
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A good choice to find is the x-intercept, if only because you are often asked to find it.
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Set y = 0 and solve for x.
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0 = 2x + 3
-2x = 3
x = 3/-2 = -3/2
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{{{ graph(500,500,-5,5,-5,5,2*x+3) }}}