Which of the following equations matches the proportional relationship?
(a) a cell phone rate plan costs 6 cents per minute.
y= 0.06x
(b) a bag of 10 apples costs $6.
y= 60x
(c) a car is driving at an average speed of 60 miles per hour.
y= 0.60x
(d) a person burns 6 calories per minute using a rowing machine.
y= 60x

Option (A) will be the correct match.

Step-by-step explanation:

We are asked to find which of the given equations matches the proportional relationship.

The only option (A) matches,

It is given that a cell phone rates plan costs 6 cents per minute.

Now, 6 cents is equivalent to $0.06.

Therefore, for a call of duration x minutes the cost of the call y, in dollars, will be given by  

y = 0.06x

So, option (A) will be the correct match. (Answer)

x:       y:  

-1         4

0         4

1         6

2         18

3         20  

answer is b chief get it right