Question

I am having trouble with the last two questions. I worked through finding the slope and y-intercept with a previous tutor, before we got disconnected.6. Express this equation as a function D of P and find its domain.7. How many shirts per month will be demanded if the price is $27?

Answer 1

Data:

$m=-\frac{203}{152}\approx-1.3355$$b=\frac{11227}{152}\approx73.862$

Equation as a function of D of P

$D(P)=-1.3355\cdot P+73.862$

Answer (6):

• Domain

$(-\infty,+\infty)$

To know how many shirts per month will be demanded if the price is $27, we have to use P = $27:

$D(27)=-1.3355\cdot27+73.862\text{ }\approx37.80$

Answer (7): $37.80