The cost y (in dollars) to rent a camping tent is proportional to the number x of days that the tent is rented. it costs $56 to rent a tent for 7 days. write an equation that represents the cost to rent a camping tent for x days.

Step-by-step explanation:

we know that

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

In this problem the linear equation represent a proportional variation

Let

x------> the number of days

y-----> the cost to rent a camping tent

The linear equation is equal to

we know that

It costs to rent a tent for days

Find the value of k

substitute

The linear equation is equal to

the mistake in the pattern is that :

b. the decimal point was moved one too many place values each time

the correct pattern could be made by :

b. moving the decimal point to the right the same numbers of place values as the exponents