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25 Cards in this Set
- Front
- Back
Percent of Change
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When an increase or decrease is expressed as a percent
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Domain
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The set of the first numbers of the ordered pairs in a relation
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Range
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The difference between the greatest and least data values
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Slope-Intercept Form
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An equation of the form y=mx+b, where x is the slope and b is the y-intercept.
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Point-Slope Form
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an equation of the form y-y1=m(x-x1), where m is the slope and (x1,y1) is a given point on a non-vertical line
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Parallel Lines
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Lines in the same plane that never intersect and either have the same slope or are vertical lines
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Perpendicular Lines
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Lines that intersect to form a right angle
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Zero Slope
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the x-intercept of the graph of a function equals 0
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Undefined Slope
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When there is a vertical line that has different y points, but the same x point
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Scatter Plot
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A scatter plot shows the relationship between a set of date with two variables, graphed as ordered pairs on a coordinate plane
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Set-Builder Notation
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A concise way of writing a solution set.
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Compound Inequality (And/Or)
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Two or more inequalities that are connected by the words and OR or.
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Rules for Graphing Inequalitites
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the arrow points in the same direction as the inequality sign
use an "open" circle if the inequality is < or > use a "closed" circle if the inequality is ≤ or ≥ |
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System of Equations
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A set of equations with the same variables
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Consistent
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A system of equations that has at least one ordered pair that satisfies both equations
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Independent
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A system of equations with exactly one solution
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Dependent
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A system of equations that has an infinite number of solutions
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Inconsistent
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A system of equations with no ordered pair that satisfy both equations
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Substitution
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Use algebraic methods to find an exact solution of a system of equations
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One solution
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when there is only 1 answer for the problem
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No solution
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when there is no correct answer to the problem
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Infinitely many solution
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when a solution set has the same slope and y-intercept
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Elimination by Addition (+)
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when the first step is solved for you
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Elimination by Subtraction
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When you have to multiply a negative so you can eliminate
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Elimination by Multiplication
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When you have to multiply both solutions to be able to eliminate
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