Question

Can someone check something for me

Answer 1

Question 1 (Essay Worth 4 points)

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)

Its a Direct Variation.


to get from 6 inches to 12 inches had to multiply by 2 the width has to change by the same factor direct variation let k be the original width then 2k = 8 solve for k, original width = 4 inches



Well the First you have to do 12/6=2 and 8/2=4 then that mean K equals 4 because they are just Multiplying it by to and that mean if you multiply 4*2=8 or you could divide 8/2=4 so that is how you get the answer for k and again k equals 4.



Question 2 (Essay Worth 4 points)

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)

Its Direct Variation.

well how you get 8 is i divided 24/3 and that equals 8 so that is how i got the Answer 8

24/3 gave me the answer 8

Question 3 (Multiple Choice Worth 2 points)

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

direct

inverse my answer

linear

quadratic

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 My answer

y equals x plus one


Which table of values reflects an inverse variation?

The following x y pairs are shown: x equals one and y equals one, x equals two and y equals four, x equals three and y equals nine.

The following x y pairs are shown: x equals one and y equals twelve, x equals two and y equals six, x equals three and y equals four.

The following x y pairs are shown: x equals one and y equals two, x equals two and y equals four, x equals three and y equals six.

The following x y pairs are shown: x equals one and y equals three, x equals two and y equals four, x equals three and y equals five.

the first one is my Answer

Question 6 (Multiple Choice Worth 2 points)

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

5 My answer

twenty-four

thirty-six

one hundred eighty

Question 7 (Multiple Choice Worth 2 points)

What sentence describes the relationship between x and y in the table of values?

A table of x y values is shown: x equals four and y equals seven, x equals five and y equals eight, x equals six and y equals nine.

y is one more than x

y is three times x

y is three more than x my answer

y is the square of x


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 My answer

y equals x squared

Answer 2

as you wrote
**to get from 6 inches to 12 inches had to multiply by 2 ***

the 2 is k. the equation is
new length = k * old length (for example)
using the numbers they gave you
12 = k * 6
k= 2

Answer 3

it is confusing to do this
*** let k be the original width***
people use k to mean the multiplier (2 in this case)
maybe say let w be the original width
new w = k * w and new w = 2*4 = 8

Answer 4

question 2. This one is more confusing than the first. They want the number of trips, if you carry B books per trip.

Let T = # of trips
then (hopefully this is clear)
\[ T = \frac{24}{B} \]

reminder: direct variation y = k x where k is some number
indirect variation \( y = \frac{k}{x} \) where k is some number.

Answer 5

I did this problem for you earlier regarding the essay #1 you did a good job but you need to let k = 2 and the width of the original photo be w or something else because the question specifically said k was the factor. please review my correction. good job