Use a Graphing Calculator to Plot the Data and Find

question 187

Multiple Choice

Use a graphing calculator to plot the data and find the quadratic function of best fit.
-The number of housing starts in one beachside community remained fairly level until 1992 and then began to increase. The following data shows the number of housing starts since 1992 (x = 1) . Use a graphing calculator to
Plot a scatter diagram. What is the quadratic function of best fit? $\begin{array}{l|l}\text { Year, x } & \text { Housing Starts, H } \\\hline 1 & 200 \\2 & 210 \\3 & 230 \\4 & 240 \\5 & 250 \\6 & 230 \\7 & 215 \\8 & 208\end{array}$

• A) \(\mathrm { H } ( \mathrm { x } ) = - 3.268 \mathrm { x } ^ { 2 } - 30.494 \mathrm { x } + 168.982\)
• B) \(\mathrm { H } ( \mathrm { x } ) = - 3.268 \mathrm { x } ^ { 2 } + 30.494 \mathrm { x } - 168.982\)
• C) \(\mathrm { H } ( \mathrm { x } ) = 3.268 \mathrm { x } ^ { 2 } + 30.494 \mathrm { x } + 168.982\)
• D) \(\mathrm { H } ( \mathrm { x } ) = - 3.268 \mathrm { x } ^ { 2 } + 30.494 \mathrm { x } + 168.982\)

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Definitions:

Cerebrum

The largest part of the brain, responsible for voluntary motor functions, sensory information processing, language, cognitive abilities, and emotional regulation.

Hemispheres

The two halves of the brain (right and left) that control different functions and processes in the human body.

Controls

Variables that are kept constant or monitored in order to assess the effect of experimental treatments in scientific studies.

Axon

A long, slender projection of a nerve cell that typically conducts electrical impulses away from the neuron's cell body.