8.F.B.4

Construct a function to model a linear relationship between two quantities. Determine the rate of change and initial value of the function from a description of a relationship or from two (x, y) values, including reading these from a table or from a graph. Interpret the rate of change and initial value of a linear function in terms of the situation it models, and in terms of its graph or a table of values.

Khan Academy Resources

Intro to slopeSlope formulaSlope reviewSlope-intercept form reviewWriting linear functions word problemsSlope from two pointsSlope-intercept from two pointsSlope in a tableSlope from graphRelating linear contexts to graph featuresSlope-intercept equation from graphLinear equations in any formSlope from equationWorked example: slope from graphConverting to slope-intercept formSlope of a line: negative slopeWorked example: slope from two pointsSlope of a horizontal lineSlope & direction of a linePositive & negative slopeSlope from equationGraphing a line given point and slopeCalculating slope from tablesSlope and y-intercept from equationWorked examples: slope-intercept introHorizontal & vertical linesIntro to slope

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