anonymous
  • anonymous
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?
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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katieb
  • katieb
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anonymous
  • anonymous
I need help i dont just want the answer
Vocaloid
  • Vocaloid
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 ?
anonymous
  • anonymous
y_ intercept of the function is 2 y=2

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Vocaloid
  • Vocaloid
are you sure about that? read the table again
Vocaloid
  • Vocaloid
what is the value of y when x = 0?
anonymous
  • anonymous
y=50 x=0
anonymous
  • anonymous
@Vocaloid
DanJS
  • DanJS
what does that tell you ?
Vocaloid
  • Vocaloid
right, that means the initial velocity of the car is 50 miles/hr
DanJS
  • DanJS
(t , v) are the ordered pairs , yea
anonymous
  • anonymous
@Vocaloid so the y-intercept would be 2 because 52-50/1-0 =2/1 am i correct for part A
Vocaloid
  • Vocaloid
no, the y-intercept is 50 because y =50 when x = 0
anonymous
  • anonymous
But @Vocaloid every hour it is increasing by 2 miles
Vocaloid
  • Vocaloid
the y-intercept is the value of y when x = 0
Vocaloid
  • Vocaloid
http://www.mathsisfun.com/definitions/y-intercept.html
anonymous
  • anonymous
can someone help me

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