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# Unit 4 Algebra

### Unit 4 Vocab Algebra

TermDefinition
parallel lines two lines in a plane that do not intercept
perpendicular lines two lines in a plane that intersect at a ninety degree angle
standard form Ax + By = C where A, B, and C are integers
point-slope form the equation of a straight line in the form y − y1 = m(x − x1), where m is the slope and (x1, y1) are the coordinates of a given point on the line
slope intercept form y = mx + b, where m is the slope and b is the y-intercept
x - intercept where the graph crosses the x-axis
y-intercept where the graph crosses the y-axis
slope a measure of the steepness of a line
linear equation an equation between two variables that gives a straight line when plotted on a graph
rate of change a ratio that compares the amount of change in a dependent variable to the amount of change in an independent variable
Created by: heather.lander