The domain is the set of numbers you are going to use for x. One by one put them into your function f(x):
f(-2) = 8(-2) - 3
f(-2) = -16 - 3
f(-2) = -19
So your first pair is -2, -19
Next 0:
f(0) = 8(0) - 3
f(0) = 0 - 3
f(0) = -3
The next pair is 0, -3
Continuing with 2:
f(2) = 8(2) - 3
f(2) = 16 - 3
f(2) = 13
Ordered pair 2, 13
Finally x = 4:
f(4) = 8(4) - 3
f(4) = 32 - 3
f(4) = 29
Ordered pair 4, 29
The ordered pairs are:
(-2, -19)
(0, -3)
(2, 13)
(4, 29)
Extra credit:
Your domain is {-2, 0, 2, 4}
Your range is {-19, -3, 13, 29}
2007-10-22 12:53:05
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answer #1
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answered by Puzzling 7
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(-2,-19)(0,-3)(2,13)(4,29)
it's simple. f(x) is the x value, the x value always being one of the numbers in the domain. =8x-3 is the y value of the ordered pair. Take, for example, 0 from the domain. The x value of the ordered pair is automatically 0, and the y value is found by substituting x with the value. 8(0)-3= -3. Hence, -3 is the y value. Therefore, you get 0,-3 as one of your ordered pairs.
2007-10-22 12:51:53
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answer #2
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answered by hi 2
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The domain is the set of numbers that you must plug in for x into the equation. In this case, every number plugged in one at a time gives you a range of - {-19, -3, 13, 29}
your ordered pairs would then be
(-2,-19) (0,-3) (2,13) (4,29)
Hope this helps!!!
2007-10-22 12:50:23
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answer #3
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answered by hchawks17 1
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the domain are the x valus, thus: 2,0,2,4
the ordered pairs are x and f(x) values
thus, plug in the x-values to get f(x) out:
(-2,-19) , (0,-3) , (2,13) , (4,29)
more explanation:
I just substituted in 2, 0, 2 and 4 for x into 8x-3
2007-10-22 12:50:16
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answer #4
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answered by Pieter K 2
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You plug the numbers in as x so you have to go thru each one and plug in the # as x and see which works so basically it turns out to be a number=a number but the number's have to be the same.
-2:
f(-2)=8(-2)-3 you plug in -2 as x
-2f=-16-3 you multiply x with something else
-2f=-19 you subtract -16 w/ 3
f=9.5 you divide both sides by -2 and you get f=9.5 or 9 and a half
the rest you do on your own.
2007-10-22 12:51:14
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answer #5
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answered by Anonymous
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Translation: Find values for y, given that x=-2,0,2,4
Write your answers as ordered pairs.
y=f(x)
Therefore y=8x -3
When x = -2, y= -19, (-2,-19)
When x=0, y=-3,.......(0,-3)
When x =2, y=13.......(2,13)
When x=4, y=29........(4,29
Simply substitute the values given for x into
y=8x-3, then solve for y)
2007-10-22 12:54:46
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answer #6
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answered by Grampedo 7
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no 2 state solution! one country, called Israelestine.
2016-04-09 22:31:43
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answer #7
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answered by Anonymous
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