Distance, Variables, and Coordinate Geometry

This video tutorial covers Unit 7, Lesson 11 on points on the coordinate plane. It begins with plotting points on a coordinate plane, explaining how to move along the x-axis and y-axis. The tutorial then moves on to writing coordinates of points on a graph, identifying points on a horizontal line, and solving a temperature difference problem using a number line. It also includes a practical example of calculating money from chocolate box sales and determining speed and distance for a running scenario. The lesson concludes with a summary of the key concepts covered.

What is the correct order of movement to plot the point (-2, 3) on a coordinate plane?

• Move 2 units right, then 3 units up

• Move 2 units left, then 3 units up

• Move 2 units left, then 3 units down

• Move 2 units right, then 3 units down

If a point is located directly on the x-axis, what can be said about its y-coordinate?

• It is positive

• It is negative

• It is zero

• It is undefined

Which of the following points lies on the horizontal line formed by the points (-3.5, 4), (0, 4), and (6.2, 4)?

• (2, 3)

• (2, 0)

• (2, 5)

• (2, 4)

If Tucson is 24 degrees warmer than Minneapolis and their temperatures are opposites, what is the temperature in Tucson?

• 12 degrees Celsius

• 24 degrees Celsius

• -12 degrees Celsius

• 0 degrees Celsius

How much money is collected if 5 boxes of chocolate bars are sold, given each box raises $30?

• $120

• $150

• $90

• $180

What is the equation for the amount of money collected (m) if b boxes are sold?

• m = 20b

• m = 30b

• m = 50b

• m = 10b

If Lynn runs 29 meters in 10 seconds, how far does she run in one second?

• 2.9 meters

• 2.5 meters

• 3.0 meters

• 3.5 meters

At Lynn's running speed, how far can she run in one minute?

• 200 meters

• 150 meters

• 180 meters

• 174 meters

What is the dependent variable in the equation m = 30b?

• None of the above

• 30

• b (boxes sold)

• m (money collected)

If 240 dollars were collected, how many boxes were sold?

• 12 boxes

• 10 boxes

• 8 boxes

• 6 boxes