How do you graph $x-y=7$ by plotting points?

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Answer 1 · 2017-06-22T02:01:51

A straight line through $(0, -7)$ and $(7, 0)$

$x-y=7$ can be rewritten as $y=x-7$

This is the equation of a straight line of slope = 1 and y-intecept of $-7$

Since the graph is a straight line only need two points to plot it.

For simplicity, I will choose $(0, -7)$ and $(7, 0)$

The graph of the line is shown below.
graph{x-y=7 [-19.78, 31.54, -13.64, 12.02]}

How do you graph x-y=7 x-y=7 by plotting points?