Linear Equations and Inequalities in 2-Variables
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| intercepts | where the parabola crosses the x-axis; where a line crosses the x- and/or y-axis
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| line of best fit | a line that most accurately represents a set of data and is used to determine whether there is a relationship or trend between paired data
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| linear function | Data sets that have a constant rate of change and forms a line, have x as the input variable where x is raised only to the first power, and graphs that are straight lines
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| linear inequality | an inequlaity that is the result of replacing the = sign in a linear equation with <, ≤, >, or ≥; when graphed the solutions are in the shaded part of the graph
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| point-slope form | equations written as y-y1=m(x-x1)
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| scatterplot | compares two sets of data to see relationships
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| slope | "the steepness of a line and is defined as rise over run
or (y2-y1)/(x2 - x1)"
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| slope-intercept form | y = mx + b, where m= slope b = y intercept and (x , y) shows the coordinate of a point on the line
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| standard form | ax + by = c where a, b and c are integers
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