What are the intercepts of the line y = x – 3?

1 Answer
Alan P.
Oct 6, 2015

y-intercept: -3
x-intercept: 3

Explanation:

The y-intercept is the value of y when x=0 (that is at the point where the graph crosses the Y-axis, since for all points on the Y-axis, x=0)
Setting x=0 in the given equation y=x-3 results in
color(white)("XXX")y=0-3=-3

Similarly the x-intercept is the value of x when y=0
color(white)("XXX")0=x-3color(white)("XXX")rarrcolor(white)("XXX")x=3

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