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Unit 3 vocab

Linear Equations and Functions

direct variation mathematical relationship between two variables that can be expressed by an equation in which one variable is equal to a constant times the other
linear equation an equation between two variables that gives a straight line when plotted on a graph.
point-slope form Point slope form is also called as point - gradient form. Point Slope Form is used to generate the Equation of a straight line passing through a given point with a slope.
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.
rate of change The ratio of the change in the output value and change in the input value of a function
slope a measure of the steepness of a line on a graph; the rise divided by the run
x-intercept the x-coordinate of the point where the graph of a lime crosses the x-axis
y-intercept the y-coordinate of the point where the graph of a line crosses the y-axis
unit rate a rate in which the second quantity in the comparison is one unit.
proportional relationship a relationship between inputs to outputs in which the ratio of inputs and outputs is always the same.
intersecting lines lines that cross at exactly one point
constant of proportionality a constant ratio of two variables related proportionally.
Created by: Joshuaq99