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