anonymous
  • anonymous
The graph shows the production of cars per day at a factory during a certain period of time. What is the domain of this function during this period? Graph of days versus cars. Points are plotted at the following coordinates: 0 comma 0, 1 comma 50, 2 comma 100, 3 comma 150, 4 comma 200, 5 comma 250, 6 comma 300, 7 comma 350, 8 comma 400, 9 comma 450. The domain is all real numbers 0 through 9. The domain is all integers 0 through 9. The domain is all positive real numbers. The domain is all positive integers.
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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schrodinger
  • schrodinger
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anonymous
  • anonymous
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jim_thompson5910
  • jim_thompson5910
Look at the points on the graph. What is the x coordinate of each point?
anonymous
  • anonymous
1,2,3,4,5,6...etc? I really don't know, I missed this lesson :/

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jim_thompson5910
  • jim_thompson5910
0 as well
anonymous
  • anonymous
I was correct?
jim_thompson5910
  • jim_thompson5910
so the domain is the set of all of those x values put together {0,1,2,3,4,5,6,7,8,9} it is the set of allowed inputs
anonymous
  • anonymous
So
anonymous
  • anonymous
I think it's A or B.
jim_thompson5910
  • jim_thompson5910
saying something like ` The domain is all positive integers.` is false because x = 12 for instance is NOT part of the domain. It stops at x = 9
jim_thompson5910
  • jim_thompson5910
What is the difference between `real numbers` and `integers` ?
anonymous
  • anonymous
Integers are numbers that are both positive and negative
jim_thompson5910
  • jim_thompson5910
is something like 12.5 an integer ?
anonymous
  • anonymous
Yes?
jim_thompson5910
  • jim_thompson5910
no, 12.5 isn't a whole number it has the fractional/decimal part 0.5
jim_thompson5910
  • jim_thompson5910
12 is but 12.5 is not
jim_thompson5910
  • jim_thompson5910
integers are whole numbers real numbers are any decimal number, fractional number, etc you can think of
anonymous
  • anonymous
Negative and Positive?
jim_thompson5910
  • jim_thompson5910
integers can be either positive or negative, yes but they are also whole numbers too
anonymous
  • anonymous
I think it's A.
jim_thompson5910
  • jim_thompson5910
is there a point with say x = 7.2 ? 7.2 is a real number between 0 and 9
anonymous
  • anonymous
No. At least I don't think so due to 7.2 is not a Whole Number.
jim_thompson5910
  • jim_thompson5910
the points given in the graph only have x coordinates that are whole numbers, ie integers
jim_thompson5910
  • jim_thompson5910
the domain is actually the set of 0 through 9 where every number in this set is a whole number or integer
jim_thompson5910
  • jim_thompson5910
x = 3 is allowed but x = 3.7562 is not allowed. There are gaps between the different numbers

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