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# MATH 133 Unit 2 Individual Project A_Complete Answer

MATH 133 Unit 2 Individual Project A_Complete Answer

MATH 133 Unit 2 Individual Project A_Complete Answer

MATH 133 Unit 2 Individual Project A_Complete Answer

MATH 133 Unit 2 Individual Project A_Complete Answer

Name:

MATH 133 Unit 2 Individual Project A

Typing hint: Type x2 as x^2 (shift 6 on the keyboard will give ^)
1) Solve the following quadratic equation by factoring:

a) x2 6x 27 0

Answers:
Show your work here:

b) Solve the quadratic equation 3×2 + 2x – 16 = 0 using the quadratic formula.
Read the information in the assignment list to learn more about how to type math symbols, such as the square root.

Answers:
Show your work here:

2) Use the graph of y = x2 + 4x – 5 to answer the following:

a) Without solving the equation or factoring, determine the solution(s) to the

equation,

x2 4x 5 0 , using only the graph.

Answer:
Explain how you obtained your answer(s) by looking at the graph in a brief sentence:

b) Does this function have a maximum or a minimum?

Answer:
Explain how you obtained your answer by looking at the graph in a brief sentence::

c) What are the coordinates of the vertex in (x, y) form?
Answer:

d) What is the equation of the line of symmetry for this parabola?
Answer:

3) The profit function for Wannamaker Trophies is P(x) = -0.4×2 + fx – m, where f represents the design fee for a customer’s awards and m represents the monthly office rent. Also, P represents the monthly profit in dollars of the small business where x is the number of awards designed in that month.

a) If \$80 is charged for a design fee, and the monthly studio rent is \$1,600; write an equation for the profit, P, in terms of x.

Typing hint: Type x-squared as x^2

Answer:

b) How much is the profit when 50 award designs are sold in a month?
Answer:
Show your work here:

c) How many award designs must be sold in order to maximize the profit? Show your work algebraically. Trial and error is not an appropriate method of solution – use methods taught in class.

Answer:
Show your work here:

d) What is the maximum profit?
Answer:
Show your work here:

4) Graph the equation on the graph by completing the table and plotting the points.
You may use Excel or another web-based graphing utility.
a) y = x2 – 6x
Use the values of x provided in the table to find the y values.
x y
0
1
2
3
4
5
6
b) Place your graph here.

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