Wednesday

August 20, 2014

August 20, 2014

Posted by **Ann** on Wednesday, October 19, 2011 at 10:39am.

a. Write an equation for the number of boxes you sell as a function of the price you charge.

b. Denote "B" for number of boxes, and "P" for the price you charge.

c. Assume the function is linear..

- Math 101 -
**Reiny**, Wednesday, October 19, 2011 at 10:57amLook at it as if you are given two ordered pairs

(3,250) and (4,120) of the form (P,B)

slope = (120-25)/(4-3) = -130/1 = -130

then just like in y = mx + b

B = -130P + b

sub in (4,120)

120 = -130(4) + b

b = 640

**B = -130P + 640**

check:

if P= 3 , B = -130(3) + 640 = 250

if P = 4 , B = -130(4) + 640 = 120

All is good.

**Related Questions**

Math - Suppose you have a cookie stand, and when you charge $3 per cookie box ...

MAT101 - Suppose you have a cookie stand, and when you charge $3 per cookie box ...

Math - Suppose you have a lemonade stand, and when you charge $1 per cup of ...

MAT101 - 6. Suppose you have a lemonade stand, and when you charge $2 per cup of...

MAT101 - 6. Suppose you have a lemonade stand, and when you charge $2 per cup of...

math - A bakery charges ten cents for a cookie that is 2 inches in diameter. If ...

math - Meka plans to bake a large circular cookie for her brother. She wants to ...

Math - Mrs. Smith surprised her 30 students with cookies. She gave them a choice...

math - Mr. Balk and Mr. Sullivan have created their own cookie factory. In their...

algebra - the basketball team is trying to raise $475 for new uniforms if they ...