Problema Solution
A pool company has learned that, by pricing a newly released noodle at $3 sales will reach 10,000 noodles per day during the summer. Raising the price to $7 will cause the sales to fall to 6,000 noodles per day. [Hint: The line must pass through (3,10000) and (7,60000).]
Assume that the relationship between sales price and number of noodles sold is linear and write an equation describing this relationship.
y=
Answer provided by our tutors
We need to find the equation of a line that passes through (3,10000) and (7,60000).
y - 60000 = ((60000 - 10000)/(7 - 3))(x - 7)
y - 60000 = 12500(x - 7)
y = 12500x - 27500