**X-intercept**: The x-coordinate of a point where a line, curve, or surface intersects the x-axis.

Resources for this term:

Modeling Situations With Linear Equations

Students explore relationships between variables in everyday situations using graphs, tables, and formulae.

Finding Equations of Parallel and Perpendicular Lines

Students identify parallel and perpendicular lines and find points of intersection and x- and y-intercepts by looking at the equations of the lines.

Forming Quadratics

Students use algebra and graphs to explore how the standard, factored, and completed square forms of a quadratic relate to the intercept, roots, maxima, and minima of function.