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Thursday, March 22 nd

Thursday, March 22 nd. Warm Up. Please have Graphing worksheet out!. Explain how you graph the point (3, -4) 2. What is k in the equation y=7x. Corny of Joke of the Day. What did the big flower say to the little flower? “how are you, Bud?”. March Madness. March Madness

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Thursday, March 22 nd

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  1. Thursday, March 22nd Warm Up Please have Graphing worksheet out! Explain how you graph the point (3, -4) 2. What is k in the equation y=7x

  2. Corny of Joke of the Day What did the big flower say to the little flower? “how are you, Bud?”

  3. March Madness

  4. March Madness Math CRCT: Grade 6 Wednesday, March 21 March Madness Grade 6

  5. 5. Which of these figures has the most lines of symmetry? March Madness Grade 6

  6. 6. On a certain map, .5 inch represents 75 miles. If the distance between two towns on this map is 2.25 inches, what is the actual distance between the two towns? March Madness Grade 6

  7. March Madness Math CRCT: Grade 6 Thursday, March 22 March Madness Grade 6

  8. 7. Which method could be used to solve the number sentence shown?4x = 16A. Subtract 4 from 4x, and subtract 4 from 16B. Subtract 4 from 4x, and subtract 16 from 16C. Divide 4x by 4, and divide 16 by 16D. Divide 4x by 4, and divide 16 by 4 March Madness Grade 6

  9. 8. Which of the following nets can be folded along the dashed lines to form a cube? March Madness Grade 6

  10. Homework Answers

  11. Where is the origin?!?!

  12. Do You Remember? • Which axis is the horizontal axis? _____________ • Which axis is the vertical axis? _____________

  13. Label the Quadrants!

  14. How would you graph (-5, 7)

  15. Goal for Today Understand how to graph y=kx

  16. Direct Variation

  17. Recap • A Linear equation makes a LINE when graphed • Y= kxis a special kind of LINEAR equation • Y=kx must go through (0,0) • In an equation we always put in a number for k (y=2x) • K is our slope (how steep the line is)

  18. Part I: Determining if a function is a Direct Variation

  19. Which one is a direct variation?

  20. Which one is a direct variation?

  21. Direct variation equation • Equation can not have anything added or subtracted to it. • Remember that y=x/4 is the same as y = 1/4 x

  22. Which one is a direct variation? • Y= 3x+2 • Y= • Y= 0.85x • Y= • Y= 443x

  23. Part II: Finding K in a Table

  24. Finding K K = y ÷ x

  25. Example #1 Answer: k=4

  26. Example #2 Answer: k=1/4

  27. Example #3 Answer: k=5/2 or 2 ½

  28. EXCITING NEWS!!! Now that we know how to find k in a table, we can look at a table to see if it’s truly a direct variation!!! Steps: • For each ordered pair, divide y by x and make sure it’s the same number! • If it’s not then it isn’t a direct variation

  29. Which table shows a Direct Variation?

  30. Part III: Practicing Graphing y = kx

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