## [answered] Assignment: Open Response 6 (50 Points) Answer each of the

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Assignment: Open Response 6 (50 Points)

Answer each of the following. If you are typing, be sure to save this in Rich Text Format,

.rtf. Making Consumer Choices

I.

it yourself. There are many things to consider: quality of homemade vs. bought, expense,

convenience, enjoyment of making something, etc. In this response, you will be looking at

A. The bread machine you are interested in costs \$100 with tax.

The ingredients to make one loaf of bread cost \$0.80.

What is the rate of cost of one loaf of bread?

B. What is your start up cost? (cost of machine)

C. Write a linear equation, y = mx + b for the total cost.

D. Graph the equation on the graph provided. You may use either Point Plotting or SlopeIntercept. Be sure to locate at least 3 points. You may want to do this in pencil in case

you decide to use more points later in the problem. E. A loaf of bread of similar quality in the store costs \$1.60. This is the rate for a loaf of

bread (the slope). As there is no other cost, your beginning point (y-intercept) is zero.

Write the linear equation y = mx + b for the total cost.

F. Graph the equation on the same graph you used in D. You may use either Point Plotting

or Slope-Intercept. Be sure to locate at least 3 points. You may want to do this in pencil

in case you decide to use more points later in the problem. G. Estimate the ordered pair where the two lines cross and write it here: (______, ______)

H. The x-value where they cross represents the number of loaves it will take to make the

cost where they are the same. Fill in:

It would take _________ loaves at a cost of \$_________ for the breadmaker and store

bought bread to cost the same.

I. Fill in the table below. You may want to go back and read the beginning for ideas. (And

yes, if you like the way it smells when it bakes, that?s an advantage.) Put down any point

several reasons for your decision. II.

The Clothes Dryer (25 points)

Most families have to decide at some point whether or not to buy convenience items for the

home. One of these items is clothes dryer. One must consider cost, convenience, repairs,

time factors, etc. when deciding.

A. The electric clothes dryer you are interested in buying costs \$300 with tax.

It uses \$0.50 of electricity for one hour of drying.

What is the rate of electric use (slope)?

B. What is your beginning cost (y-intercept)? C. Write this as a linear equation in y = mx + b form.

D. Fill in the table below by substituting the given values of x in the equation and solving for

y. Let x = 0, 50, 100, 150, 200, 250, 300, 350, 400, 450, 500. (This is a horizontal TTable.)

X

Y 0 50 100 150 200 250 300 350 400 450 500 E. It costs \$1.50 per hour to dry clothes at a laundromat. The rate per hour is \$1.50 (slope)

and the beginning point is 0 (y-intercept). Write a linear equation in y = mx + b form to

represent the total cost.

F.

X

Y Fill in the table below by substituting the given values of x in the equation and solving for

y. Let x = 0, 50, 100, 150, 200, 250, 300, 350, 400, 450, 500.

0 50 100 150 200 250 300 350 400 450 500 G. Name the ordered pair that is the same in both tables: ( ____ , _____)

H. The x-value represents the number of loads it would take for the costs to be the same

and the y-value represents the cost where they are the same. Fill in:

It would take __________ number of loads at a cost of \$___________ for the dryer at

home to cost the same as the dryer at a laundromat.

I. Fill in the table below. You may want to go back and read the beginning for ideas. Put

down any point you can think of.

Advantages of Buying the Dryer J. Advantages of Using a Laundromat Dryer Decision Time! Tell whether or not you have decided to buy the dryer. Give several

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