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Emily778

  • 2 years ago

Which choice describes the translation represented by the translation rule (x,y) -->(x+4, y-1)? (1 point) 4 units to the right and 1 unit down 1 unit to the right and 4 units down 4 units to the left and 1 unit up 4 units to the left and 1 unit down

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  1. Emily778
    • 2 years ago
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    @johnweldon1993

  2. Emily778
    • 2 years ago
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    @jim_thompson5910

  3. jim_thompson5910
    • 2 years ago
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    x to x+4 means you're taking some x coordinate and turning it into x+4

  4. jim_thompson5910
    • 2 years ago
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    visually, you're translating the point 4 units to the right

  5. jim_thompson5910
    • 2 years ago
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    y to y-1 means what?

  6. Emily778
    • 2 years ago
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    thanks. I already figured it out though. xP

  7. jim_thompson5910
    • 2 years ago
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    ok great, glad you were able to figure it out

  8. Emily778
    • 2 years ago
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    Can you help with this? The hexagon GIKMPR and FJN are regular. The dashed line segments form 30° angles. Find the angle of rotation about O that maps JK to FG. 90° 240° 150° 120°

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  9. jim_thompson5910
    • 2 years ago
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    one sec while I draw

  10. Emily778
    • 2 years ago
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    K

  11. jim_thompson5910
    • 2 years ago
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    how many angles have I highlighted?

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  12. Emily778
    • 2 years ago
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    5

  13. jim_thompson5910
    • 2 years ago
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    each angle is 30 degrees, so the answer is 5*30 = 150

  14. Emily778
    • 2 years ago
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    What about this one? The hexagon GIKMPR and FJN are regular. The dashed line segments form 30° angles. Find the angle of rotation about O that maps P to G. (1 point) 240° 120° 210° 270°

  15. Emily778
    • 2 years ago
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    the picture is the same

  16. Emily778
    • 2 years ago
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    @jim_thompson5910

  17. jim_thompson5910
    • 2 years ago
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    ok drawing it out

  18. jim_thompson5910
    • 2 years ago
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    how many angles did I mark below?

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  19. Emily778
    • 2 years ago
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    8

  20. jim_thompson5910
    • 2 years ago
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    so 8*30 = 240 is your answer

  21. Emily778
    • 2 years ago
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    why times 30?

  22. Emily778
    • 2 years ago
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    and I really don't get this. Find the degree of rotation about the spinner center that maps label i to label g. (1 point) 72° 108° 36° 288°

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  23. jim_thompson5910
    • 2 years ago
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    because each angle I highlighted is 30 degrees

  24. jim_thompson5910
    • 2 years ago
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    the other one, you're going 2 spots over each angle is 36 degrees, so you're going a total of 2*36 = ??? degrees

  25. Emily778
    • 2 years ago
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    72

  26. jim_thompson5910
    • 2 years ago
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    yep

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