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kupik [55]
2 years ago
15

Please help this is due really soon

Mathematics
2 answers:
Alona [7]2 years ago
6 0
Well your domain is your x and the range is your y 

the relation is a function if 
1) x has a corresponding y 
2) any one x has only one y 

think about when you graph a point  (x, y)  if the same x has two different ys' then the graph will NOT be a function because does not pass the vertical line test. Like (2,4) and (2,-4) could be touched by a vertical line. 
A. is NOT a function because x=6 has multiple y=9, y=10, y=11

B. is a function because x=4 has y=6, x=7 has y=3, x=9 has y=7!!!

C. is NOT not a function because x=5 has two y, y=6 and y=9
D. is NOTa function because x=5 has two y, y=1 and y=8


just olya [345]2 years ago
4 0
B is a function because each input only has one output
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The sum of three numbers is 8. twice the smaller is 2 less than the largest, while the sum of the largest and smallest is 5. use
Lorico [155]
X + Y + Z = 8
2x = Z - 2
X + Z = 5
X = 1
1 + Y + Z = 8
Y + Z = 6
1 + Z = 5
Z = 4
1 + Y + 4 = 8
5 + Y = 8
Y = 3
The variables are 1, 3, 4.
4 0
3 years ago
Christopher Columbus set sail from Spain in 1492. In what year did the Civil War end?
horsena [70]

Answer:

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Step-by-step explanation:

4 0
3 years ago
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HELP ME HOW DO I DO THIS I ALWAYS GET IT WRONG I NEED HELP AND NEED TO KNOW HOW YOU DID IT PLEASEEEEEEEE
seraphim [82]

Answer:

Step-by-step explanation:

The surface area of a rectangular prism has six sides so you must find the sum of the areas of all sides.

A=2xy+2xz+2yz

A=2(xy+xz+yz) you have x,y,z as 3,2,4 so

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7 0
2 years ago
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Gabriel has $0.80 worth of pennies and
Juliette [100K]

Answer:

nickels=13 and pennies=15

Step-by-step explanation:

0.05n+0.01p=0.80

-0.01(n+p=28)

0.05n+0.01p=0.80

-0.01n-0.01p= -0.28

0.04n=0.52

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4 0
3 years ago
on a number line, point D is located at 9 and point P is located at -11 what is the distance from d to p
Aleks04 [339]

Answer:

20

Step-by-step explanation:

The distance between two points on the number line is the absolute value of the difference of their coordinates.

coordinate of point D: 9

coordinate of point P: -11

Take the absolute value of their difference. It does not make a difference in which order you subtract the coordinates.

distance = |-11 - 9| = |-20| = 20

Answer: The distance is 20.

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3 years ago
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