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Algebra

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Math Review of Slopes of Parallel and Perpendicular Lines
Math Review of Slopes of Parallel and Perpendicular Lines 150 150 Deborah

Overview Lines representing graphs of linear equations have slopes, defined as the change in y/change in x. Parallel lines have the same slope, but no solutions in common. Perpendicular lines…

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Math Review of Direct Variation and the Slope Intercept Form
Math Review of Direct Variation and the Slope Intercept Form 150 150 Deborah

Overview A direct variation is a linear relationship between variables so they have a constant ratio. It is a special case of the slope-intercept form y =mx +b, where b…

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Math Review of Rate of Change and Slope
Math Review of Rate of Change and Slope 150 150 Deborah

Overview The rate of change is a ratio that compares the change in values of the y variables to the change in values of the x variables. If the rate…

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Math Review of Intercepts
Math Review of Intercepts 150 150 Deborah

Overview A linear function follows the standard form ax + by = c. The intercepts are the points where the line intersects each axis. A line can be graphed by…

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Math Review of Linear Functions
Math Review of Linear Functions 150 150 Deborah

Overview In order for functions to be linear, they must follow two criteria. First, each domain value must be paired with one range value. If a domain value is paired…

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Math Review of Arithmetic Sequences
Math Review of Arithmetic Sequences 150 150 Deborah

Overview Arithmetic sequences are sequences in which the difference between one term and the next term is a constant amount. They can be defined by developing a rule that relates…

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Math Review of Scatterplots, Trend Lines, and Median-Fit Lines
Math Review of Scatterplots, Trend Lines, and Median-Fit Lines 150 150 Deborah

Overview Data in real-world situations doesn’t always fall into neat linear relationships. The actual values may be plotted in a scatterplot. Trend lines approximate the direction and size of the…

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Math Review of Writing and Graphing Functions
Math Review of Writing and Graphing Functions 150 150 Deborah

Overview A function is a special relationship between variables in an equation such that for every domain value, there is only one range value. Functions can be expressed using a…

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Math Review of Relationships, Relations, and Functions
Math Review of Relationships, Relations, and Functions 150 150 Deborah

Overview Relationships between data points can often be represented on graphs. They can also be expressed in ordered pairs as relations or functions. Relationships and Graphs One of the many…

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Math Review of Compound Inequalities
Math Review of Compound Inequalities 150 150 Deborah

Overview Compound inequalities are similar to compound statements, as they are two simple inequalities joined by conjunctions. Suppose it were true that a variable x was between 2 and 9.…

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