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. use slope intercept form.

This is the concept of algebra, we solve the question as follows:
The cost of renting a camping tent is y
The number of days is x
cost is proportional to number of days, thus:
yαx
y=kx
where k is the constant of proportionality.
If y=$56 when x=7 days, then:
56=7k
hence:
k=56/7=8
therefore:
y=kx will be:
y=8x
the equation in slope intercept form which is y=mx+c is y=8x. In our case c=0 because there was no initial payments required to rent apart from the daily charges.