1) Cindy\'s computer store a profit of $140,000 when selling computers and makes a profet of $222,500 when selling 450 computers. a) Identify the independent variable and dependent variable in this problem , and assign each variable a letter . DO NOT USE THE LETTER X OR Y . - Meaning of independent variable : ----------------- , -Letter : ---------------------------- -Meaning of dependent variable : -------------------- , -Letter : --------------------------- b) Use the informatio given in the problem to write a linear equation using the variables from part (a) . Please show your work . Don\'t use linear regression on your calculator to find the equation. -Linear equation : --------------------------------------------- c) Use the equation you just derived to find the profit when the store sells 390 computers - Profit fom selling 390 computers : ---------------------------------------- ------------------------------------------------------------------------------------------------------------------- 2) Acme\'s profit , in hindreds of dollors , is given by the equation P=-40A^2 + 700A +13 . Where A is the amount spent on advertisements in thousands of dollors. a) Find the P-intercept (vertical intercept) and interpret the meaning of that point in context. Be sure to write a complete sentence that interprets the meaning of both values in the point. - P-intercept: -------------------------------- -Explanation of the meaning : ------------------------ b) Find the maximum or minimum output value of the function and interpret the meaning of that value in context . In your explanation , also interpret the meaning of the input value where the maximum r minimum occurs . Explain what calculator feature you used > Be sure to write a complete sentense that inerprets the meaning of both the input and output values where the max or min occurs . Maximum or minimum : -------------------- Calculator feature used and its explanation : ----------------- Explanation of meaning : ------------------ c) Find the A-intercepts (horizontol intercept) ALGEEBRAICALLY )and their approximate values) and interpret the meaning in context. Show you work . Be sure to write a complete sentense that interprets the meaning of both values in the point . A-intercepts : ------------- Explanation of meaning : --------------------- Solution Hi, I\'m doing my master in Math at Harvard. I will be easily be able to help you with all you assignments and clarify all your doubts. Please mail me at appsgoli@gmail.com Have a nice day :).

1. 1) Cindy's computer store a profit of $140,000 when selling computers and makes a profet of
$222,500 when selling 450 computers.
a) Identify the independent variable and dependent variable in this problem , and assign each
variable a letter . DO NOT USE THE LETTER X OR Y .
- Meaning of independent variable : ----------------- , -Letter : ----------------------------
-Meaning of dependent variable : -------------------- , -Letter : ---------------------------
b) Use the informatio given in the problem to write a linear equation using the variables from
part (a) . Please show your work . Don't use linear regression on your calculator to find the
equation.
-Linear equation : ---------------------------------------------
c) Use the equation you just derived to find the profit when the store sells 390 computers
- Profit fom selling 390 computers : ----------------------------------------
-------------------------------------------------------------------------------------------------------------------
2) Acme's profit , in hindreds of dollors , is given by the equation P=-40A^2 + 700A +13 .
Where A is the amount spent on advertisements in thousands of dollors.
a) Find the P-intercept (vertical intercept) and interpret the meaning of that point in context. Be
sure to write a complete sentence that interprets the meaning of both values in the point.
- P-intercept: --------------------------------
-Explanation of the meaning : ------------------------
b) Find the maximum or minimum output value of the function and interpret the meaning of that
value in context . In your explanation , also interpret the meaning of the input value where the
maximum r minimum occurs . Explain what calculator feature you used > Be sure to write a
complete sentense that inerprets the meaning of both the input and output values where the max
or min occurs .
Maximum or minimum : --------------------
Calculator feature used and its explanation : -----------------
Explanation of meaning : ------------------
c) Find the A-intercepts (horizontol intercept) ALGEEBRAICALLY )and their approximate
values) and interpret the meaning in context. Show you work . Be sure to write a complete
sentense that interprets the meaning of both values in the point .
A-intercepts : -------------
Explanation of meaning : ---------------------
Solution

2. Hi, I'm doing my master in Math at Harvard. I will be easily be able to help you with all you
assignments and clarify all your doubts. Please mail me at appsgoli@gmail.com
Have a nice day :)