Which relation is a direct variation that contains the ordered pair (2, 7)?
y= 4x -1
ovat
y = 2 x
y = 1/2 x
NIN XS

Step-by-step explanation:

we know that

A relationship between two variables, x, and y, represent a direct variation if it can be expressed in the form or

In a direct relationship the constant of proportionality k is equal to the slope m of the line and the line passes through the origin

step 1

Find the value of the constant of proportionality k

we have

the ordered pair (2, 7)

so

 ----->

therefore

The relation is

 ----->  

a. she will receive a refund of $278.

step-by-step explanation:

17.08

correct me if i am wrong.