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 Flashcards Matching Hangman Crossword Type In Quiz Test StudyStack Study Table Bug Match Hungry Bug Unscramble Chopped Targets

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# Unit 3 vocab. Math A

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TermDefinition
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
Slope a number that measures its "steepness", usually denoted by the letter m. It is the change in y for a unit change in x along the line.
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
X-intercept the x-coordinate of a point where a line, curve, or surface intersects the x-axis
Linear Equation an equation between two variables that gives a straight line when plotted on a graph.
Y-Intercept the y-coordinate of a point where a line, curve, or surface intersects the y-axis
Point-Slope form the equation of a straight line in the form y − y1 = m(x − x1) where m is the slope of the line and (x1, y1) are the coordinates of a given point on the line
Unit Rate describes how many units of the first type of quantity corresponds to one unit of the second type of quantity.
Slope-intercept form the equation of a straight line in the form y = mx + b where m is the slope of the line and b is its y-intercept
Proportional relationship a relationship between inputs to outputs in which the ratio of inputs and outputs is always the same.
Rate of change a value that results from dividing the change in a function of a variable by the change in the variable.
Intersecting lines lines that cross at the same point.
Created by: ibneo_