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lina2011 [118]
3 years ago
14

Explain how to determine if a proportional relationship exists between two variables in a graph

Mathematics
1 answer:
Natasha2012 [34]3 years ago
8 0
Here are some steps to determine if a proportional relationship exists between two variables in a graph ! Hope it's useful~

*1.   Note whether the line is straight. When two variables are in proportion, the line representing them will be straight. This means that the slope of the line is constant, or follows the equation\

*2.  Determine the y-intercept. The y-intercept is the point where the line crosses the y-axis. When two variables are directly proportional, when graphed their line will cross through the origin. The origin is at the point {(0,0)}, so the y-intercept of the line should be (0). If it isn’t, the variables are not directly proportional.**The y-axis is the vertical axis.

*3.  Find the coordinates of two points on the line. Compare the coordinates with each other, and determine whether each coordinate changed by the same factor.[6] That is, determine whether the constant ({k}) is the same for both the { x} and { y} values.For example, if the first point is {(1,3)}, and the second point is { (2,6)}, the x-coordinate changed by a factor of 2, since<span> { 1(2)=2}. The y-coordinate also changed by a factor of 2, since { 3(2)=6}. Thus, you can confirm that the line represents two variables that are directly proportional.

Best Regards,,,
Wish it was the answer you're looking for !!
Information taken from the following web:
https://www.wikihow.com/Determine-Whether-Two-Variables-Are-Directly-Proportional#Using_a_Graph_sub
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There are 5 kids who want to start a game of Red Rover. Then 12 more kids come to play. If there are 2 teams in Red Rover, which
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Answer: The answer is one will have 8 and one will have 9 so roughly 8

Step-by-step explanation

So to start we need to add all the kids together that are playing

5+12= 17

Now we need to divide the number of kids by the number of teams that there are

17 divided by 2=8.5

So each team will have 8 but one will have nine

Hope this helps :D

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3 years ago
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Peter the Leprechaun has 526 gold bars that he arranges evenly into 24 pots. Each gold bar weighs 2.2 pounds. A) How many bars o
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Answer: 21

Step-by-step explanation: The amount the gold bar weighs is extra information and is meant to throw you off, 526/24 is 21.9 but because you can’t have a decimal amount of gold bars it’s just 21 in each pot.

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What is the name of the segment inside a triangle
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altitude is the answer

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4 years ago
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Some friends of yours collected books for a book drive. They collected 64 Fiction, and 48 Non-Fiction books. They asked you to m
Cloud [144]

As all of the bundles have the same content inside, so assuming that there is x number of Fiction books and y number of Non-fiction books in each bundle.

Let n be the total number of bundles that my team can send.

There are 64 Fiction books, so

nx=64 ...(i)

Or x=64/n ...(ii)

also, there are 48 Non-Fiction books, so

ny=48 ...(iii)

Or y=48/n ...(iv)

Observing that the numbers x, y, and n are counting numbers and from equations (i) and (iii), n is the common factor of 64 and 48.

The possible common factors of 64 and 48 are,

n=1,2,4,8, and 16.

So, my team can send 1,2,3,4,8 or 16 bundles of books.

Now, from equations (ii) and (iv),

For n=1:

x=64/1=64

y=48/1=48

So, for 1 bundle the number of Fiction and Non-fictions books are 64 and 48 respectively.

For n=2:

x=64/2=32

y=48/2=48

So, for 2 bundles, the number of Fiction and Non-fictions books are 32 and 24 respectively.

For n=4:

x=64/4=16

y=48/4=12

So, for 4 bundles, the number of Fiction and Non-fictions books are 16 and 12 respectively.

For n=8:

x=64/8=8

y=48/8=6

So, for 8 bundles, the number of Fiction and Non-fictions books are 8 and 6 respectively.

For n=16:

x=64/16=4

y=48/16=3

So, for 16 bundles, the number of Fiction and Non-fictions books are 4 and 3 respectively.

8 0
4 years ago
Pythagorean theorem: Manuel purchases a rectangular picture
san4es73 [151]

Answer:

width = 15

Step-by-step explanation:

a² + b² = c² This the the formula

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8² + b² = 17²

64 + b² = 289 (subtract 64 on both sides)

b² = 225 (square root)

b = 15

Hope this helps ya!!

8 0
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