Question

A photo is 6 inches long. Kamala enlarged the photo so that it is twelve inches long. By keeping the same proportion of the photo, what would be the width of the photo if the enlarged photo is 8 inches wide?

Two images of rectangles. The first is six inches long and ? wide. The second is twelve inches long and eight inches wide

Does this relationship represent direct or inverse variation? (1 point)
Using the appropriate formula, find k. (1 point)
Show your work and calculate the width of the original photo. (2 points)

Answer 1

The question is talking about a proportion between the two rectangles. By setting up a proportional equation, you can find the width of the first rectangle.

6/?=12/8

Find the ?:
6x8=48
48/12=4
So the answer is 4

Answer 2

would this work this is what my mom lol thought

6x2=12
kx2=8
8 divided by 2 is 4
so k=4 @Stuffstuffturkey

Answer 3

No, cross multiply and divide

Answer 4

k so 6x8=48
48divided by12=4
so k=4 @Stuffstuffturkey

Answer 5

is that a formula tho? @Stuffstuffturkey

Answer 6

Yes sorta

Answer 7

it is a direct variation right?

Answer 8

Hold on let me see.... It's been a while

Answer 9

can you also answer this

Bryan has to carry 24 books to a new shelf. If he carries one book at a time, it will take him 24 trips. If he carries 3 books at a time, how many trips will it take?
Does this relationship represent direct or inverse variation? (1 point)
Using the appropriate formula, find k. (1 point)
Show your work and answer the original question. (2 points)

Answer 10

Bryan has to carry 24 books to a new shelf. If he carries one book at a time, it will take him 24 trips. If he carries 3 books at a time, how many trips will it take?
Does this relationship represent direct or inverse variation? (1 point)
Using the appropriate formula, find k. (1 point)
Show your work and answer the original question. (2 points)


@Stuffstuffturkey

Answer 11

8, because 24/3=8

Answer 12

i have a few more questions if you dont mind @Stuffstuffturkey

Answer 13

Sure... Btw this is what I found about direct and indirect variation

Answer 14

and are they direct variations or indirect
@Stuffstuffturkey

Answer 15

Direct Variation

When x and y are directly proportional, then doubling x will double the value of y; and if we divide these variables we get a constant result. Since if then where k is called the constant of proportionality.

Answer 16

is that for 1 or 2 @Stuffstuffturkey

Answer 17

Both, as they both deal with that, also it's just a definition, not an answer

Answer 18

So in other words, if you were to make an equation with those problems, and the answer of the equation would directly change if you change double numbers, it's a direct variation. If that is not true, it's indirect

Answer 19

Indirect Variation.

We gave an example of inverse proportion above, namely speed and time for a particular journey.
In this case, if you double the speed, you halve the time. So the product, speed x time = constant.
In general, if x and y are inversely proportional, then the product xy will be constant.

Answer 20

Another definition

Answer 21

im confused is that an example or is 2 indirect

Answer 22

Just an example... sorry

Answer 23

And 2 would be indirect

Answer 24

1 would be direct

Answer 25

Do you understand why?

Answer 26

kinda...@Stuffstuffturkey

Answer 27

do u mind answering some more questions... @Stuffstuffturkey

Answer 28

No, shoot

Answer 29

n which type of relationship will the graph never pass through the coordinate pair zero comma zero?

direct

inverse

linear

quadratic

Answer 30

@Stuffstuffturkey

n which type of relationship will the graph never pass through the coordinate pair zero comma zero?

direct

inverse

linear

quadratic

Answer 31

Inverse

Answer 32

If y varies inversely as x and the constant of variation is thirty, what is y when x equals six?

5

twenty-four

thirty-six

one hundred eighty

@Stuffstuffturkey

Answer 33

5

Answer 34

Which of the following equations represents an inverse variation?

y equals x divided by two

y equals two times x

y equals two divided by x

y equals x squared @Stuffstuffturkey

Answer 35

Sorry... A

Answer 36

Which equation represents the relationship shown in the graph?

A graph with the following points labeled is shown. A curved line connects them. X equals one and y equals one. X equals two and y equals one-half. X equals three and y equals one-third. X equals four and y equals one-fourth.

y equals x

y equals x minus one

y equals one divided by x

y equals x plus one

@Stuffstuffturkey