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CCSS 8.F.2 Worksheets

CCSS 8.F.2 (Common Core, 8th Grade): "Compare properties of two functions each represented in a different way (algebraically, graphically, numerically in tables, or by verbal descriptions). For example, given a linear function represented by a table of values and a linear function represented by an algebraic expression, determine which function has the greater rate of change." The worksheets below practice this standard. Each one is a free printable PDF with an answer key, comes in multiple versions, and can also be assigned digitally - no login or account needed.

Functions Define, evaluate, and compare functions. 2Compare properties of two functions each represented in a different way (algebraically, graphically, numerically in tables, or by verbal descriptions). For example, given a linear function represented by a table of values and a linear function represented by an algebraic expression, determine which function has the greater rate of change.

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CCSS 8.F.2 Worksheets - Comparing and Interpreting Linear Functions in Real-World Situations worksheet

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Comparing and Interpreting Linear Functions in Real-World Situations

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Compare the rates of change of two linear functions given as equations.
Evaluate a linear function for a given input.
Interpret the y-intercept of a linear model in context.

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CCSS 8.F.2 Worksheets - Drawing Line with Different Rate of Change worksheet

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Drawing Line with Different Rate of Change

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Draw a straight line on a graph when you are given its rate of change (slope).
Use rise and run to plot points and keep the line going in the correct direction.
Tell whether a line has a positive or negative slope by how it moves left to right.

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CCSS 8.F.2 Worksheets - Identifying Rate of Change (Description) worksheet

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Identifying Rate of Change (Description)

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Practice finding the rate of change (slope) from a description of how x and y increase or decrease together
Write the slope as a fraction using the change in y over the change in x
Determine the correct sign (positive or negative) based on whether x and y are increasing or decreasing

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CCSS 8.F.2 Worksheets - Identifying Rate of Change (Equations) worksheet

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Identifying Rate of Change (Equations)

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Practice finding the rate of change by plugging x values into an equation and seeing how y changes each time
Fill in a table of x and y values, then calculate the difference between consecutive y values to find the rate of change
Work with equations written in different forms and simplify them to spot a constant rate of change

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CCSS 8.F.2 Worksheets - Identifying Rate of Change (Graphs) worksheet

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Identifying Rate of Change (Graphs)

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Read points from a graph and use them to find how much y changes when x changes.
Find the rate of change by counting the rise and run between two points on a line.
Tell whether a line shows a positive, negative, or zero rate of change.

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CCSS 8.F.2 Worksheets - Identifying Rate of Change (S.I.F.) worksheet

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Identifying Rate of Change (S.I.F.)

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Find the rate of change (slope) from a linear equation written as y = mx + b.
Tell whether the rate of change is positive, negative, zero, or not a whole number by looking at the slope.
Identify the y-intercept in slope-intercept form and explain what it means as a starting value.
Compare two equations by deciding which one changes faster based on their slopes.

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CCSS 8.F.2 Worksheets - Identifying Rate of Change (Tables) worksheet

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Identifying Rate of Change (Tables)

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Practice finding the rate of change from a table by calculating how much y changes for each unit change in x
Use the formula (change in y) ÷ (change in x) between pairs of values in the table
Work with tables that include negative numbers and values that aren't evenly spaced

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CCSS 8.F.2 Worksheets - Identifying Y Intercept (Equations) worksheet

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Identifying Y Intercept (Equations)

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Find the y-intercept from an equation by spotting the constant term.
Read the y-intercept directly from slope-intercept form (y = mx + b).
Rewrite an equation into y = mx + b form so the y-intercept is easy to see.

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CCSS 8.F.2 Worksheets - Identifying Y Intercept (Graphs) worksheet

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Identifying Y Intercept (Graphs)

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Find the y-intercept on a graph by locating where the line crosses the y-axis.
Read the y-value at x = 0 and write it as an ordered pair (0, y).
Use the graph’s scale and tick marks to get the correct y-intercept value, including negatives.
Tell the difference between the y-intercept and other points where the line crosses the x-axis.

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CCSS 8.F.2 Worksheets - Identifying Y Intercept (Tables) worksheet

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Identifying Y Intercept (Tables)

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Practice finding the y-intercept from a table by determining the value of y when x equals 0
Use the given equation to calculate y at x = 0 when that row isn't directly in the table
Work with different types of equations including simple, multi-step, and those involving multiplication and subtraction

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