Open Up - Grade 8 - Mathematics - Unit 4 - Lesson 3

By Formative Library

Last updated over 2 years ago

6 Questions

In this hanger, the weight of the triangle is x and the weight of the square is y.
Write an equation using x and y to represent the hanger.

8.EE.7.a

8.EE.7.b

In this hanger, the weight of the triangle is x and the weight of the square is y.
If x is 6, what is y?

8.EE.7.a

8.EE.7.b

Match each set of equations with the move that turned the first equation into the second.

		Set A
		Set B
		Set C
		Set D
		Set E

8.EE.7.a

8.EE.7.b

Andre and Diego were each trying to solve 2x + 6 = 3x - 8. Describe the first step they each make to the equation.

The result of Andre’s first step was -x + 6 = -8.

8.EE.7.a

8.EE.7.b

Complete the table with values for x or y that make this equation true: 3x + y = 15.

Create a graph, plot these points, and find the slope of the line that goes through them.

8.EE.7.a

8.EE.7.b

Select all the situations for which only zero or positive solutions make sense.

A bank account balance over a year.

Measuring temperature in degrees Celsius at an Arctic outpost each day in January.

The temperature in degrees Fahrenheit of an oven used on a hot summer day.

The elevation above sea level of a hiker descending into a canyon.

The number of students remaining in school after 6:00 p.m.

The height of a candle as it burns over an hour.

8.EE.7.a

8.EE.7.b

"Source: Open Up Resouces (Download for free at openupresources.org.)"