Which equation is a direct variation function? y = x y = 1/4 x + 2 y = x2 , y = 4,

and

Step-by-step explanation:

We know,

'Direct Variation function' is the function where two quantities vary directly i.e. variables x and y are said to be directly varying if 'y=kx' where k is the constant of variation.

Thus, from the options, we see that the function,

is varying directly with the constant of variation i.e. k = 1.

is also varying directly with constant

Two choices are correct answer.

 y = x   and y = 1/4 x

Step-by-step explanation:

We have given four equations.

We have to choose the equations that are direct variation function.

Direct variation function is defined as the relation where one variable vary constant times to the other variable.

let two variables are x and y.

y = kx   where k is constant.

Comparing given equation , we notice that

y = x is direct variation function where k = 1.

y = 1/4 x is direct variation function where k = 1/4.

answer: she must produce at least 9,000 windows in order to make a profit of $48,000

explanation:

48,000 - 12,000 = 36,000

36,000/4 = 9,000

question 1 is 8, question 2 is 9, question 3 is 24

step-by-step explanation:

now, the numbers they give you at the top are the key. from there, you just have to plug and chug! let's try 1, 2, and 3!

key: a=3, b=5, c=6

1. a+5

remember, a=3, so we plug that in to get 3+5=8

2. 15-c

c=6, so we plug that in to get 15-6=9

3. 4b

b=6, so we plug it in to get 4*6=24

time to try the rest on your own! if you put the answers below in a comment, i'll check them for you!