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{{ printedBook.courseTrack.name }} {{ printedBook.name }} The points where a graph crosses the $x-$ and $y-$axes are called the $x-$intercept and $y-$intercept, respectively.

Sometimes, only one coordinate of these points is referenced. For example, since the $x-$intercept lies at $(a,0),$ it can be said that $x=a.$ The same is true for the $y-$intercept $(0,b),$ $y=b.$ A relation can have several intercepts; a function can have multiple $x-$intercepts, but it can only have one $y-$intercept.