Algebra II : Algebra II

Study concepts, example questions & explanations for Algebra II

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Example Questions

Example Question #87 : Linear Functions

Translate the line  down three units and left four units.  What is the new equation?

Possible Answers:

Correct answer:

Explanation:

Rewrite the equation in slope-intercept form:  

Shifting this line down three units will decrease the y-intercept by three.

If the line is shifted left four units, the x-variable will need to be replaced with .

Simplify this equation.

The answer is:  

Example Question #88 : Linear Functions

Translate the line  left three units and down four units.  What is the new equation?

Possible Answers:

Correct answer:

Explanation:

Rewrite the given equation in standard form to slope-intercept form.

Add  on both sides.

A shift down four units will decrease the y-intercept by four.  The current y-intercept is zero.  Rewrite the equation.

The line shifted three units to the left means that the x-variable will need to be replaced with .

Rewrite the equation.

Simplify this equation.

The answer is:  

Example Question #371 : Functions And Graphs

Translate the graph  up three units.  What is the new equation?

Possible Answers:

Correct answer:

Explanation:

Simplify the equation by distribution.

Shifting this line up by three units will add three to the y-intercept.

The answer is:  

Example Question #90 : Linear Functions

Shift the graph:   up five units.  What is the new equation?

Possible Answers:

Correct answer:

Explanation:

Use distribution to simplify this equation.  We will need to put the equation in slope-intercept format, 

The equation becomes:  

Shifting this equation up five units will add five to the y-intercept.

The answer is:  

Example Question #41 : Transformations Of Linear Functions

Shift the graph  three units to the left.  What's the new equation?

Possible Answers:

Correct answer:

Explanation:

In order to shift an equation to the left three units, the x-variable will need to be replaced with the quantity of .  This shifts all points left three units.

Simplify the equation.

The answer is:  

Example Question #42 : Transformations Of Linear Functions

Shift the line  up six units.  What is the new equation?

Possible Answers:

Correct answer:

Explanation:

Add six to the equation since a vertical shift will increase the y-intercept by six units.

Simplify this equation by distribution.

The answer is:  

Example Question #43 : Transformations Of Linear Functions

Translate the function:   to the left 5 units.  What is the equation in slope-intercept format?

Possible Answers:

Correct answer:

Explanation:

Divide by three on both sides.

The equation becomes:  

If this equation shifts to the left five units, we will need to replace the x term with the quantity .

Simplify this equation by distribution.

Combine like-terms.

The answer is:  

Example Question #44 : Transformations Of Linear Functions

Translate the function  to the left four units.  What is the new equation?

Possible Answers:

Correct answer:

Explanation:

Translation of a graph to the left four units will require replacing the x-variable with the quantity:

Replace the term inside the equation.

Use distribution so simplify the terms.

Simplify the equation.

The answer is:  

Example Question #45 : Transformations Of Linear Functions

Shift the equation  up two units.   What is the new equation?

Possible Answers:

Correct answer:

Explanation:

In order to find the equation after the translation, we will need to put the equation in slope-intercept format, .

Subtract  from both sides of the equation.

The equation becomes:  

Divide by three on both sides.

Add two to the y-intercept for the vertical shift.  This is the same as adding .

The equation is:  

Example Question #46 : Transformations Of Linear Functions

If the graph  is translated 5 units left, what is the new equation?

Possible Answers:

Correct answer:

Explanation:

Rewrite the given equation in standard form to slope intercept format, .

Subtract x from both sides.

The slope intercept form is:  

If the line is translated 5 units to the left, we need to replace the quantity of x with .

Simplify the equation.  Distribute the negative through the binomial.

The answer is:  

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