Question

The cost of soup, s, varies directly with the number of cans, c. When c is 4, the cost is $3. Which graph represents the cost of the soup?

Answer 1

Answer: is the thrid graph on edge

Step-by-step explanation: C

Answer 2

we know that

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

`(y)/(x) =k\ or\ y=kx`

In this problem

Let

x--------> the number of cans

y-------> the cost of a soup

so

when

`x=4\ cans\\y=\$3`

substitute

`(y)/(x) =k\\\\ (3)/(4) =k`

the equation is

`y=(3)/(4)x`

using a graph tool

see the attached figure

the answer in the attached figure