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anonymous

  • one year ago

MEDAL..........The table below represents the velocity of a car as a function of time: Time (hour) x Velocity (miles/hours) y 0 50 1 52 2 54 3 56 Part A: What is the y-intercept of the function, and what does this tell you about the car? Part B: Calculate the average rate of change of the function represented by the table between x = 1 to x = 3 hours, and tell what the average rate represents. Part C: What would be the domain of the function if the velocity of the car was measured until it reached 60 miles/hour and the car does not change motion?

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  1. anonymous
    • one year ago
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    I need help i dont just want the answer

  2. Vocaloid
    • one year ago
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    Part A: What is the y-intercept of the function, and what does this tell you about the car? what does y = when x = 0 ?

  3. anonymous
    • one year ago
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    y_ intercept of the function is 2 y=2

  4. Vocaloid
    • one year ago
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    are you sure about that? read the table again

  5. Vocaloid
    • one year ago
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    what is the value of y when x = 0?

  6. anonymous
    • one year ago
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    y=50 x=0

  7. anonymous
    • one year ago
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    @Vocaloid

  8. DanJS
    • one year ago
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    what does that tell you ?

  9. Vocaloid
    • one year ago
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    right, that means the initial velocity of the car is 50 miles/hr

  10. DanJS
    • one year ago
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    (t , v) are the ordered pairs , yea

  11. anonymous
    • one year ago
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    @Vocaloid so the y-intercept would be 2 because 52-50/1-0 =2/1 am i correct for part A

  12. Vocaloid
    • one year ago
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    no, the y-intercept is 50 because y =50 when x = 0

  13. anonymous
    • one year ago
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    But @Vocaloid every hour it is increasing by 2 miles

  14. Vocaloid
    • one year ago
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    the y-intercept is the value of y when x = 0

  15. Vocaloid
    • one year ago
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    http://www.mathsisfun.com/definitions/y-intercept.html

  16. anonymous
    • one year ago
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    can someone help me

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