Illustrative Math - Algebra 2 - Unit 7 - Lesson 1 - Formative Library | Library

Which of these statements describes a key distinction between an observational study and an experimental study?

Match the description of the study design with the type of study being conducted.

Draggable item		Category
Does a certain multivitamin help people lose weight? Researchers select 100 people to participate in the study and assign them to 2 groups at random. One group is given the multivitamin. The other group is given a fake pill. The weights of all of the participants are recorded daily for the next three months.		An experimental study
How do business customers feel about the level of support they receive? The business randomly selects 200 customers and asks them to share their opinions.		A survey
Do truck drivers get into more accidents than people who drive SUVs? Researchers use police records of automobile accidents over the past year and vehicle registrations to compare the percentage of drivers of vehicles of each type that get into accidents		An observational study that is not a survey

Mai is using the quadratic formula to solve two different quadratic equations.
For the first equation, she writes x=\frac{=-4\pm \sqrt{4^{2}-4(4)(2)}}{2(4)}
For the second equation, she writes x=\frac{=3\pm \sqrt{(-3)^{2}-4(3)(5)}}{2(3)}
How many real solutions will each equation have? Explain how you know.

Here are graphs of two functions f and g.
Which statements are true about the graph of y=h(x) where h given by h(x)=f(x)-g(x)? Select all that apply.

This lesson is from Illustrative Mathematics. Algebra 1, Unit 7, Lesson 1. Internet. Available from https://curriculum.illustrativemathematics.org/HS/teachers/3/7/1/preparation.html ; accessed 29/July/2021.

IM Algebra 1, Geometry, Algebra 2 is © 2019 Illustrative Mathematics. Licensed under the Creative Commons Attribution 4.0 International License (CC BY 4.0).

The Illustrative Mathematics name and logo are not subject to the Creative Commons license and may not be used without the prior and express written consent of Illustrative Mathematics.

These materials include public domain images or openly licensed images that are copyrighted by their respective owners. Openly licensed images remain under the terms of their respective licenses. See the image attribution section for more information.

Illustrative Math - Algebra 2 - Unit 7 - Lesson 1

Which of these statements describes a key distinction between an observational study and an experimental study?

Match the description of the study design with the type of study being conducted.

Here are graphs of two functions f and g.Which statements are true about the graph of y=h(x) where h given by h(x)=f(x)-g(x)? Select all that apply.

Here are graphs of two functions f and g.
Which statements are true about the graph of y=h(x) where h given by h(x)=f(x)-g(x)? Select all that apply.