Coordinate Plane Concepts and Variables

The video tutorial covers graphing on the coordinate plane, including identifying and plotting points in different quadrants. It also explains independent and dependent variables through word problems, helping students understand how variables interact in real-world scenarios.

What is the horizontal axis on a coordinate plane called?

• Y-axis

• Z-axis

• X-axis

• W-axis

In which quadrant is the point (8, 8) located?

• Quadrant III

• Quadrant I

• Quadrant IV

• Quadrant II

What are the coordinates of the origin on a coordinate plane?

• (1, 1)

• (0, 0)

• (2, 2)

• (0, 1)

If a point is located at (0, -14), on which axis does it lie?

• X-axis

• Y-axis

• None

• Z-axis

What is the dependent variable in the scenario where a worker earns money based on hours worked?

• Type of job

• Hours worked

• Money earned

• Number of workers

In a pizza pricing scenario, what is the independent variable if the cost of a large pizza depends on the cost of a medium pizza?

• Cost of large pizza

• Number of toppings

• Cost of medium pizza

• Size of pizza

What does the electric current depend on in the solar cell example?

• Temperature

• Light intensity

• Wind speed

• Time of day

What would the electric current be if there is no sunlight?

• 200

• 0

• 50

• 100

If the light intensity is 1000, what is the predicted electric current?

• 200

• 150

• 100

• 50

Which variable is considered independent in the solar cell example?

• Temperature

• Light intensity

• Electric current

• Voltage