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constant of proportionality the constant value of the ratio of two proportional quantities x and y; usually written y = kx, where k is the factor of proportionality
direct variation algebra/ao4/ldirect.htm‎ When two variable quantities have a constant (unchanged) ratio, their relationship is
linear equation an equation between two variables that gives a straight line when plotted on a graph.
point-slope form The "point-slope" form of the equation of a straight line is: y - y1 = m(x - x1) ... one point on the line; and the slope of the line,. you can find other points on the line.
slope-intercept form A linear equation is an algebraic equation in which each term is either a constant or the product of a constant and a single variable. Linear equations can have one or more variables.
rate of change Momentum and rate of change are simple technical analysis indicators showing the
slope a surface of which one end or side is at a higher level than another; a rising or falling surface.
x-intercept of a line is the point at which the line crosses the x axis
y-intercept The y-intercept of a line is the point at which the line crosses the y axis
unit rate The estimated market value contribution for each unit of an improvement
proportional relationship is a relationship between two quantities, usually represented by the equals sign " (=)".
intersecting lines The notion of line or straight line was introduced by ancient mathematicians to represent straight objects with negligible width and depth. Lines are an idealization of such objects
Created by: Jacob_twin