**Missouri Learning Education Standards**. Linear equations are equations that have two variables and when graphed are a straight line. Linear equation can be graphed based on their slope and y-intercept. The standard equation for a line is y = mx + b, where m is the slope and b is the y-intercept. Slope can be found with the formula m = (y2 - y1)/(x2 - x1), which represents the change in y over the change in x. Read More...

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Linear equationsWorksheet/Answer key

Linear equations

MO.8.EEI. Expressions, Equations and Inequalities

8.EEI.B. Understand the connections between proportional relationships, lines and linear equations.

8.EEI.B.6. Apply concepts of slope and y-intercept to graphs, equations and proportional relationships.

8.EEI.B.6a. Explain why the slope (m) is the same between any two distinct points on a non-vertical line in the Cartesian coordinate plane.

MO.8.F. Functions

8.F.A. Define, evaluate and compare functions.

8.F.A.3. Investigate the differences between linear and nonlinear functions.

8.F.A.3a. Interpret the equation y = mx + b as defining a linear function, whose parameters are the slope (m) and the y-intercept (b).

8.F.A.3b. Recognize that the graph of a linear function has a constant rate of change.

8.F.B. Use functions to model relationships between quantities.

8.F.B.4. Use functions to model linear relationships between quantities.

8.F.B.4a. Explain the parameters of a linear function based on the context of a problem.

8.F.B.4b. Determine the parameters of a linear function.

8.F.B.4c. Determine the x-intercept of a linear function.

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