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Algebra 2 6-8 Complete Lesson: Graphing Radical Functions

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Last updated about 4 years ago
25 questions
Note from the author:
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A complete formative lesson with embedded slideshow, mini lecture screencasts, checks for understanding, practice items, mixed review, and reflection. I create these assignments to supplement each lesson of Pearson's Common Core Edition Algebra 1, Algebra 2, and Geometry courses. See also mathquest.net and twitter.com/mathquestEDU.

Solve It!

Solve It! Response & Explanation

Question 1
1.

Problem 1 Got It?
Graph the parent square root function and the two translations in the same plane.
Notice how the translations relate to the parent function, to their graphs, and to one another.
Zoom and pan your graph to establish an appropriate viewing window.

We have released a new and improved Graphing question type! Students will no longer be able to answer this question.
Question 2
2.

Problem 2 Got It?
Graph the parent square root function and the two translations in the same plane.
Notice how the translations relate to the parent function, to their graphs, and to one another.
Zoom and pan your graph to establish an appropriate viewing window.

We have released a new and improved Graphing question type! Students will no longer be able to answer this question.
Question 3
3.

Problem 3 Got It?
Graph the parent square root function and the two translations in the same plane.
Notice how the translations relate to the parent function, to their graphs, and to one another.
Zoom and pan your graph to establish an appropriate viewing window.

We have released a new and improved Graphing question type! Students will no longer be able to answer this question.
10
Question 4
4.

Question 5
5.

Problem 5 Got It?
Graph the parent cube root function and the translation in the same plane.
Notice how the translation relates to the parent function and to its graph.
Zoom and pan your graph to establish an appropriate viewing window.

We have released a new and improved Graphing question type! Students will no longer be able to answer this question.
Question 6
6.

Question 7
7.

Question 8
8.

a. Sketch a graph of the function using the blue pen tool on the canvas below.
b. Graph the function using the embedded Desmos graphing calculator above.
c. Sketch a new (more accurate?) graph of the function in red on the same plane as your blue sketch.

It is okay if your blue and red graphs overlap.
As always, label the axes and indicate thier scale by marking at least one value on each axis.

Question 9
9.

a. Sketch a graph of the function using the blue pen tool on the canvas below.
b. Graph the function using the embedded Desmos graphing calculator above.
c. Sketch a new (more accurate?) graph of the function in red on the same plane as your blue sketch.

It is okay if your blue and red graphs overlap.
As always, label the axes and indicate thier scale by marking at least one value on each axis.

10
Question 10
10.
F.IF.7.b
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Question 11
11.
F.IF.7.b
Question 12
12.

Writing: Explain the effect that a has on the graph of the function.

Question 14
14.

Review Lesson 6-7: Identify the inverse of each function on the right and state whether the inverse is also a function.

  • The inverse IS also a function.
  • The inverse IS NOT a function.
  • The inverse is:
  • The inverse is:
Question 15
15.

Review Lesson 6-2: Rationalize the denominator and simplify to write the number in simplest form.

Question 16
16.

Review Lesson 4-7: Write the common form of the quadratic formula.
Hint: It shoud be in this format: x = [insert correct rational expression here].

Question 17
17.

Review Lesson 4-7: Solve using the quadratic formula. Show your work on the canvas.

Question 18
18.

Review Lesson 4-7: Solve using the quadratic formula. Show your work on the canvas.

Question 19
19.

Review Lesson 1-3: Evaluate the expression for the given value of x.
Enter only a number.

Question 20
20.

Review Lesson 1-3: Evaluate the expression for the given value of x.
Enter only a number.

Question 21
21.

Review Lesson 1-3: Evaluate the expression for the given value of x.
Enter only a number.

Question 22
22.

Vocabulary Review: Categorize each pair of figures based on whether or not they appear to show a translation.

  • Shows a translation
  • Does NOT show a translation
Question 23
23.

Use Your Vocabulary: Fill in each blank on the right with the correct form of either vertical or horizontal.

  • vertically
  • horizontally
  • vertical
  • horizontal
Question 24
24.

Notes: Take a clear picture or screenshot of your Cornell notes for this lesson. Upload it to the canvas. Zoom and pan as needed.

For a refresher on the Cornell note-taking system, click here.

Question 25
25.

Reflection: Math Success

Problem 4 Got It? You can model the population P of Corpus Christi, Texas, between the years 1970 and 2005 by the radical function below.
Using this model, in what year was the population of Corpus Christi 275,000?

The Desmos graphing utility is embedded below for your convenience.
C
D
Problem 6 Got It? How can you rewrite the cube root function below so that you can graph it using transformations. Describe the graph.
Stretch the graph of the parent function vertically by a factor of 2, translate 2 units left, and translate 4 units up.
Stretch the graph of the parent function vertically by a factor of 2, translate 4 units left, and translate 2 units down.
Stretch the graph of the parent function vertically by a factor of 2, translate 4 units right, and translate 2 units down.
Problem 6 Got It? Reasoning: Describe the graph of y = |9x - 18| by rewriting it in the form y = a|x - h|. How is this similar to rewriting the square root equation below (from Problem 6)?
|9x - 18| = 9|x - 2|; the graph of y = 9|x - 2| is the graph of y = |x| stretched vertically by a factor of 9 and translated right 2 units; in both cases, you are rewriting the function so that x has a coefficient of 1.
|9x - 18| = 9|x - 2|; the graph of y = 9|x - 2| is the graph of y = |x| stretched vertically by a factor of 2 and translated right 9 units; in both cases, you are rewriting the function so that x has a coefficient of 1.
|9x - 18| = 9|x - 2|; the graph of y = 9|x - 2| is the graph of y = |x| stretched vertically by a factor of 9 and translated left 2 units; in both cases, you are rewriting the function so that x has a coefficient of 1.
C
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a scales the graph horizontally. If a > 1, the result is a horizontal stretch. If 0 < a < 1, the result is a horizontal compression. Similar horizontal stretches and compressions occur if a < 0, but when a is negative, the graph is also reflected across the y-axis.
A helicopter takes off __?__.
A package on a flat conveyor belt moves __?__.
Stepping side-to-side is a __?__ movement.
The hieght of an athelte's jump is commonly called their __?__.