Use a Graphing Calculator to Plot the Data and Find

question 57

Multiple Choice

Use a graphing calculator to plot the data and find the quadratic function of best fit.
-Southern Granite and Marble sells granite and marble by the square yard. One of its granite patterns is price sensitive. If the price is too low, customers perceive that it has less quality. If the price is too high, customers
Perceive that it is overpriced. The company conducted a pricing test with potential customers. The following
Data was collected. Use a graphing calculator to plot the data. What is the quadratic function of best fit? $\begin{array}{c|l}\text { Price, } x & \text { Buyers, B } \\\hline \$ 20 & 30 \\\$ 30 & 50 \\\$ 40 & 65 \\\$ 60 & 75 \\\$ 80 & 72 \\\$ 100 & 50 \\\$ 110 & 25\end{array}$

• A) \(B ( x ) = - 0.243 x ^ { 2 } + 3.115 x - 22.13\)
• B) \(B ( x ) = 0.0243 x ^ { 2 } - 3.115 x - 22.13\)
• C) \(B ( x ) = - 0.0243 x ^ { 2 } + 3.115 x - 22.13\)
• D) \(B ( x ) = - 0.0243 x ^ { 2 } + 3.115 x + 22.13\)

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Definitions:

Carbohydrates

Organic compounds, consisting of carbon, hydrogen, and oxygen, that are broken down to release energy in the body, including sugars, starches, and cellulose.

Mechanical Digestion

The physical process of breaking down food into smaller pieces without chemical change, typically accomplished by chewing and the action of the stomach.

Chemical Digestion

The process in which large molecules in food are broken down into smaller molecules by the action of digestive enzymes.

Gallbladder

Organ that stores and concentrates bile.