Twa kɔ nsɛm atitiriw so
Log in
Sign up for FREE
arrow_back
Laabri

Algebra 2 6-8 Guided Practice: Graphing Radical Functions

star
star
star
star
star
Last updated over 3 years ago
23 Nsɛmmisa
3

Solve It!

Solve It! Response & Explanation

3
10
3
8
10
3
10
10
3
3
10
3
10
F.IF.7.b
10
F.IF.7.b
Asemmisa {{asɛmmisaAhyɛnsode}}
1.

Video Check: Select all that apply with regards to the video embedded directly above this item.

Asemmisa {{asɛmmisaAhyɛnsode}}
2.

Video Check: Select all that apply with regards to the video embedded directly above this item.

Take Note: Take a moment to add the information about radical functions and square root functions to your notes. Don't forget to add the details from the Key Concept box about their reflections and transformations.

10
Asemmisa {{asɛmmisaAhyɛnsode}}
3.

Take Note: What is the parent square root function ? Use y and x, as shown in this lesson.

10
Asemmisa {{asɛmmisaAhyɛnsode}}
4.

Take Note: What is the parent radical function ? Use y, x, and index n, as shown in this lesson.

Asemmisa {{asɛmmisaAhyɛnsode}}
5.

Problem 1 Got It? Graphing:

  • y=\sqrt{x} (parent square root function)

  • y=\sqrt{x}+2

  • y=\sqrt{x}-3

  1. Graph the three square root functions on the same plane at desmos.com.

  2. Zoom and pan your graph to establish an appropriate viewing window.

  3. Notice how the translations relate to the parent function, to their graphs, and to one another.

  4. Take a screenshot of your graph and upload or paste it onto the Formative canvas.

Asemmisa {{asɛmmisaAhyɛnsode}}
6.

Video Check: Select all that apply with regards to the video embedded directly above this item.

Asemmisa {{asɛmmisaAhyɛnsode}}
7.

Take Note: Use your knowledge of function translations to match corresponding items below.

Draggable itemarrow_right_altCorresponding Item

The graph of the parent function y=\sqrt{x} shifted up 3 units.

arrow_right_alt

The graph of the parent function y=\sqrt{x} shifted right 3 units.

y=\sqrt{x-3}

arrow_right_alt

The graph of the parent function y=\sqrt{x} shifted left 3 units.

y=\sqrt{x+3}

arrow_right_alt

y=\sqrt{x}-3

The graph of the parent function y=\sqrt{x} shifted down 3 units.

arrow_right_alt

y=\sqrt{x}+3

Asemmisa {{asɛmmisaAhyɛnsode}}
8.

Problem 2 Got It? Graphing:

  • y=\sqrt{x} (parent square root function)

  • y=\sqrt{x-3}

  • y=\sqrt{x+2}

  1. Graph the three square root functions on the same plane at desmos.com.

  2. Zoom and pan your graph to establish an appropriate viewing window.

  3. Notice how the translations relate to the parent function, to their graphs, and to one another.

  4. Take a screenshot of your graph and upload or paste it onto the Formative canvas.

Asemmisa {{asɛmmisaAhyɛnsode}}
9.

Video Check: Select all that apply with regards to the video embedded directly above this item.

Take Note: Consider the parent square root function:

and the combined transformation function:

10
Asemmisa {{asɛmmisaAhyɛnsode}}
10.

Take Note:

What impact does a in the combined transformation function have on the graph of the parent square root function ?

10
Asemmisa {{asɛmmisaAhyɛnsode}}
11.

Take Note:

What impact does h in the combined transformation function have on the graph of the parent square root function ?

10
Asemmisa {{asɛmmisaAhyɛnsode}}
12.

Take Note:

What impact does k in the combined transformation function have on the graph of the parent square root function ?

Asemmisa {{asɛmmisaAhyɛnsode}}
13.

Take Note: Consider the parent square root function y=\sqrt{x} and the combined transformation function y=a\sqrt{x-h}+k. Match each parameter on the left with its effect on the graph of the parent function.

  • a

  • k

  • h

  • Translates the graph horizontally

  • Translates the graph vertically

  • Stretches or compresses the graph vertically and can cause a vertical reflection of the graph across the x-axis

Asemmisa {{asɛmmisaAhyɛnsode}}
14.

Problem 3 Got It? Graphing:

  • y=\sqrt{x} (parent square root function)

  • y=\frac{1}{2}\sqrt{x-3}+4

  • y=-2\sqrt{x+2}-1

  1. Graph the three square root functions on the same plane at desmos.com.

  2. Zoom and pan your graph to establish an appropriate viewing window.

  3. Notice how the translations relate to the parent function, to their graphs, and to one another.

  4. Take a screenshot of your graph and upload or paste it onto the Formative canvas.

Asemmisa {{asɛmmisaAhyɛnsode}}
15.

Video Check: Select all that apply with regards to the video embedded directly above this item.

10
Asemmisa {{asɛmmisaAhyɛnsode}}
16.

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?

FYI: You can access the \sqrt[n]{} button for custom indices in the Desmos math keyboard by clicking the Functions button.

Asemmisa {{asɛmmisaAhyɛnsode}}
17.

Video Check: Select all that apply with regards to the video embedded directly above this item.

Asemmisa {{asɛmmisaAhyɛnsode}}
18.

Problem 5 Got It? Graphing:

  • y=\sqrt[3]{x} (parent cube root function)

  • y=3-\sqrt[3]{x-2}

  1. Graph the two cube root functions on the same plane at desmos.com. FYI: You can access the \sqrt[n]{} button for custom indices in the Desmos math keyboard by clicking the Functions button.

  2. Zoom and pan your graph to establish an appropriate viewing window.

  3. Notice how the translations relate to the parent function, to their graphs, and to one another.

  4. Take a screenshot of your graph and upload or paste it onto the Formative canvas.

Asemmisa {{asɛmmisaAhyɛnsode}}
19.

Video Check: Select all that apply with regards to the video embedded directly above this item.

10
Asemmisa {{asɛmmisaAhyɛnsode}}
20.

Take Note: Summarize the process used in Problem 6 to rewrite the radical function y=\sqrt{9x+18} so that it can be graphed using transformations. You may use the canvas to help illustrate your written summary.

Asemmisa {{asɛmmisaAhyɛnsode}}
21.

Problem 6 Got It? How can you rewrite the cube root function below so that you can graph it using transformations. Describe the graph.

Asemmisa {{asɛmmisaAhyɛnsode}}
22.

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)?

10
Asemmisa {{asɛmmisaAhyɛnsode}}
23.

🧠 Retrieval Practice:

Summarize the mathematical content of this lesson. What topics, ideas, and vocabulary were introduced?