Complete this quiz after reading Module 2.1 (YESmos or desNO). You should be able to answer every question without referring back to the module. If you get stuck, reread that section.

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Taking the quiz as ·

Part A

Multiple Choice

This quiz tests your understanding of the YESmos or desNO framework, the five core Desmos strategies, regression types, and must-know techniques.

1A student is solving the equation 4(x + 2) = x² − 4. There are no unknown constants. Which Desmos strategy applies?*

A) Slider B) Test the Answers C) Type It In D) Regression

Please select an answer.

2A problem gives f(x) = 70x − 7(x² − 6x) and asks: if f(b) = 448, which of the following is b? (A) 2 (B) 4 (C) 6 (D) 8. Which strategy is most efficient?*

A) Slider B) Test the Answers C) Type It In D) Choose and Use

Please select an answer.

3A student uses a slider for a problem where the answer turns out to be 7/8. What went wrong?*

A) They forgot to zoom out B) Sliders do not work reliably for fractions or large numbers C) They should have used degrees mode D) They used the wrong regression type

Please select an answer.

4A regression returns the value 1 for an unknown constant. Should the student trust it?*

A) Yes, if it satisfies the equation B) No — 1 is a Desmos default and almost always wrong C) Yes, but only for integer answers D) No — regression never works for constants equal to 1

Please select an answer.

5Before solving a trigonometry problem in Desmos, what must a tutor always check?*

A) That the zoom level is at default B) That angle units are set to degrees C) That the expression list is empty D) That function notation is enabled

Please select an answer.

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Part B

Short Answer

Respond in your own words.

6Explain the "Choose and Use" strategy in your own words. When does it fail?*

Please answer this question.

7A student says: "I can't solve this problem because I don't know the value of a." How do you respond if this is a Choose and Use problem?*

Please answer this question.

8List the six regression types and give one situation where each applies.*

Please answer this question.

9What is the #1 Desmos hack and how do you use it? When does it apply?*

Please answer this question.

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Part C

Teaching Scenario

This puts you in a tutoring session. Respond in your own words.

10A new student opens Desmos for every problem, including simple linear equations they could solve by hand in 10 seconds. How do you address this habit without discouraging Desmos use? What do you say in the session?*

Please answer this question.

Quiz 2.1 — YESmos or desNO

Multiple Choice

Short Answer

Teaching Scenario

You're all set