ANALYTICAL GEOMETRY A  B  C  D  E  F  G  H  I  J  K  L  M  N  O  P  Q  R  S  T  U  V  W  X  Y  Z                    HOME ABOUT CATEGORIES SITE MAP COPYRIGHT ADVERTISE CONTACT entire Web this site slope "Rise over run." For a straight line in the plane, the slope is the tangent of the angle it forms with the positive x-axis. For a curve, the slope is, by definition, the slope of the tangent line. Therefore, if the slope is constant a line is straight. Related category    • ANALYTICAL GEOMETRY Also on this site: Encyclopedia of Alternative Energy & Sustainable Living Encyclopedia of History Transport Concepts & Designs (partner site) BACK TO TOP