Exercises
1. the graph below shows the amount of time a person can shower with a certain amount of water.
minutes
20
60
80
40
gallons
a.
can you determine by looking at the graph whether the length of the shower is proportional to the number of
gallons of water? explain how you know.
b.
how long can a person shower with 15 gallons of water? how long can a person shower with 60 gallons of
water?
c.
what are the coordinates of point a? describe point a in the context of the problem.
d.
can you use the graph to identify the unit rate?

B. How long can a person shower with 15 gallons of water? How long can a person shower with 60 gallons of water?

3+x

step-by-step explanation:

step-by-step explanation:

let's assume

number of candles set =x

price of of x candles =p(x)

we are given

a candle maker prices one set of scented candles at $10 and sells an average of 200 sets each week

so, we get point as (200,10)

he finds that when he reduces the price by $1, he then sells 50 more candle sets each week

so, we can find slope

now, we can use point slope form of line

now, we can plug values

we can use point

and find b

now, we can plug it back

and we get

now, we can find revenue

we know that

revenue = price*quantity

so, we get