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Students create ordered pairs, graph depreciating car values, and calculate rates of depreciation, then identify that the rate of depreciation = slope of the line.

In science, students often start their graphs at an origin other than $(0, 0)$. Also the scales are often very large or very small and variables, other than $x$ and $y$, are used.

Before algebra students can be expected to understand traditional "word problems," they need experience using algebra as a language, i.e. writing algebraic expressions and equations.
This worksheet leads students to discover the differences between linear equations and identities. The well formulated questions force students to employ critical thinking.
The lesson begins with using the lcd to clear the fractions in the equation, and then a review of proportions follows to motivate the "shortcut" of cross multiplication for equations containing on
The lesson begins with horizontal and vertical lines, first looking at the corresponding sets of points that comprise each, then using the points to find the slope of each type of line.
Beginning with a general introduction to conics and how they are formed, circles are first presented and then ellipses are motivated by looking at the general equation of a circle centered at the
This lesson begins with centralized hyperbolas and then moves into translated hyperbolas.
The lesson begins with a definition of a linear inequality and then looks at individual points that satisfy the inequality to motivate the existence of a larger set of points that satisfy the ineq
Using a cost/revenue application problem, the lesson begins with systems involving quadratic equations.