Identifying Graphs & Effects of Function Manipulation: CCSS.Math.Content.HSF-BF.B.3 - Common Core: High School - Functions

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Given the function identify the graphically effect creates.

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This question is testing one's ability to identify the graphically transformation that algebraic manipulation to the function creates.

For the purpose of Common Core Standards, "Identify the effect on the graph of replacing f(x) by f(x) + k, k f(x), f(kx), and f(x + k) for specific values of k ." falls within the Cluster B of "Build new functions from existing functions" concept (CCSS.MATH.CONTENT.HSF-BF.B.3).

Knowing the standard and the concept for which it relates to, we can now do the step-by-step process to solve the problem in question.

Step 1: Use technology to graph the function .

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The function in the graph above has a -intercept at zero.

Step 2: Use technology to graph the new function .

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The function in the graph above has a -intercept at three.

Step 3: Compare and interpret the two graphs to identify the graphically effect.

When the two functions are plotted on the same graph where the original function is in blue and the shifted function is in orange is below.

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Given the original function , the graphically effect creates is a vertical shift upwards of three units.

Step 4: Answer the question.

In other words, moves the original function up three units.