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AP Calculus AB/BC
An equation of a line represents every point on that line. It typically takes the form y = mx + b, where m is the slope and b is the y-intercept.
Slope: A measure of steepness between two points on a line.
Y-Intercept: The y-coordinate where a line intersects or crosses with the y-axis.
Parallel Lines: Two lines that have equal slopes and will never intersect each other.