Common Core: High School - Functions : Construct Linear and Exponential Functions, Arithmetic and Geometric Sequences: CCSS.Math.Content.HSF-LE.A.2

Study concepts, example questions & explanations for Common Core: High School - Functions

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All Common Core: High School - Functions Resources

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Example Questions

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Example Question #41 : Linear, Quadratic, & Exponential Models*

What is the function that describes the graph?

Q11

Possible Answers:

Correct answer:

Explanation:

This question is testing one's ability to identify and construct an algebraic function given a graph.

For the purpose of Common Core Standards, "Construct linear and exponential functions, including arithmetic and geometric sequences, given a graph, a description of a relationship, or two input-output pairs (include reading these from a table)." falls within the Cluster A of "Construct and compare linear, quadratic, and exponential models and solve problems" concept (CCSS.MATH.CONTENT.HSF-LE.A.2). 

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: Identify -intercept.

Recall that the -intercept is the point at which the line crosses the -axis. In other words, it is at the point where .

Q11

Step 2: Identify the slope.

Recall that slope is known as rise over run or the change in the y values over the change in x values.

The rise is three units up and the run is four units to the right.

Step 3: Construct the equation using the slope-intercept form of a linear function.

The slope-intercept form of a linear function is,

.

Substitute the slope and intercept into the general form to construct this particular function.

Example Question #42 : Linear, Quadratic, & Exponential Models*

What is the function that describes the graph?

Q12

Possible Answers:

Correct answer:

Explanation:

This question is testing one's ability to identify and construct an algebraic function given a graph.

For the purpose of Common Core Standards, "Construct linear and exponential functions, including arithmetic and geometric sequences, given a graph, a description of a relationship, or two input-output pairs (include reading these from a table)." falls within the Cluster A of "Construct and compare linear, quadratic, and exponential models and solve problems" concept (CCSS.MATH.CONTENT.HSF-LE.A.2). 

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: Identify -intercept.

Recall that the -intercept is the point at which the line crosses the -axis. In other words, it is at the point where .

Q12

Step 2: Identify the slope.

Recall that slope is known as rise over run or the change in the y values over the change in x values.

The rise is one unit down and the run is one unit to the right.

Step 3: Construct the equation using the slope-intercept form of a linear function.

The slope-intercept form of a linear function is,

.

Substitute the slope and intercept into the general form to construct this particular function.

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All Common Core: High School - Functions Resources

6 Diagnostic Tests 82 Practice Tests Question of the Day Flashcards Learn by Concept
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