y=-x+4 ? how you find this?
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This is just the graph of a line with a y-intercept of 4 and an x-intercept of 4. Thus, the points (0,4) and (4,0) lie on the line. Graph it for yourself, and you'll see that it has a "negative" slope - it "falls" from "left" to "right."
y=-x+4 ? how you find this?
-------------------------------------------------------------------------------------------------------------------------
This is just the graph of a line with a y-intercept of 4 and an x-intercept of 4. Thus, the points (0,4) and (4,0) lie on the line. Graph it for yourself, and you'll see that it has a "negative" slope - it "falls" from "left" to "right."