you would go down 4 on the y-axis and the slope is 1 so then you would make a perfect diagonal line facing like this /
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First convert it to Y= y-x+4=0 y=x-4 The graph has a slope of 1 and the y-intercept is (0,-4)
You subtract X from both sides, in which u get y=x-4; u should be able to graph that
y=x-2 y=x+4
The line x = 4 is a verticle line because, in a standard x-y graph, where x increases to the right and y increases upwards, the graph x = 4 is all points y, where x is 4. That is a verticle line, with infinite slope.
y=x2-4x+4 y = (x-2)(x-2) x=2 the graph only crosses the x-axis at positive 2. this is the minimum of the graph and the only point that is crosses the x-axis.