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Three-Dimensional Coordinates Chapter Exam

Exam Instructions:

Choose your answers to the questions and click 'Next' to see the next set of questions. You can skip questions if you would like and come back to them later with the yellow "Go To First Skipped Question" button. When you have completed the practice exam, a green submit button will appear. Click it to see your results. Good luck!

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Question 1 1. Which variables do you set to 0 when you need to find the y intercept?

Question 2 2. What do you get when you graph a linear equation in the coordinate space?

Question 3 3. Which direction do you go if your z component is negative?

Question 4 4. How many components are included in three-dimensional space?

Question 5 5. Which component gives you the height?

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Question 6 6. Select the correct ordered pair for the star.

Question 7 7. Select the correct coordinates for the star.

Question 8 8. The arrow points to the origin on the graph. What are the coordinates for the origin?

Question 9 9. What are the coordinates for the star?

Question 10 10. In which Quadrant of the Cartesian Plane would you find the point (-3,-4)?

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Question 11 11. A vector of magnitude 30 makes an angle of 53 degrees with the x-axis. What is the x-coordinate of this vector?

Question 12 12. What is the magnitude of the vector with coordinates (34, 56, 21)?

Question 13 13. A certain vector makes an angle of 24 degrees with the x-axis, 63 degrees with the y-axis, and 87 degrees with the z-axis. What is the unit vector that gives the direction of this vector?

Question 14 14. What are the three direction ratios for the vector with coordinates (2, 7, 1)?

Question 15 15. What is a unit vector?

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Question 16 16. The centroid of a triangle is the point where:

Question 17 17. If segment CG has a length of 12 units, and G is the centroid of the triangle, how long is segment CF?

Question 18 18. Point G is the centroid of the triangle. If segment CF is 48 units long, how long is segment FG?

Question 19 19. If segment BG has a length of 24 units, and G is the centroid of the triangle, how long is segment BE?

Question 20 20. The centroid of a triangle is always located:

Three-Dimensional Coordinates Chapter Exam Instructions

Choose your answers to the questions and click 'Next' to see the next set of questions. You can skip questions if you would like and come back to them later with the yellow "Go To First Skipped Question" button. When you have completed the practice exam, a green submit button will appear. Click it to see your results. Good luck!

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