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Reference.org
Y-intercept
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<p>In <a href="/facts/Analytic_geometry/3qWP0kM0">analytic geometry</a>, using the common convention that the horizontal axis represents a variable x {\displaystyle x} and the vertical axis represents a variable y {\displaystyle y} , a y {\displaystyle y} -intercept or vertical intercept is a point where the <a href="/facts/Graph_of_a_function/htYX0BGX">graph of a function</a> or <a href="/facts/Relation_(mathematics)/HjblDaMy">relation</a> intersects the y {\displaystyle y} -axis of the <a href="/facts/Coordinate_system/Mtd0q4SP">coordinate system</a>. As such, these points satisfy x = 0 {\displaystyle x=0} . </p>