Solve the Problem (I) Make a Line Graph of the Data

question 414

Multiple Choice

Solve the problem.
-The table lists the average composite scores on a national entrance exam for selected years. $$\begin{array} { c | c c c c c c c } \text { Year } & 2 & 4 & 6 & 8 & 10 & 12 & 14 \\\hline \text { Score } & 122.7 & 131.5 & 131.5 & 129.5 & 133.9 & 132.0 & 130.0\end{array}$$ (i) Make a line graph of the data. (ii) If the graph represents a piecewise-linear function f, find a symbolic representation for the
Piece of f located on the interval [4, 6].

• A) none of these
• B) \(f ( x ) = 4.4 x - 8589.3\) if \(8 \leq x \leq 10\)
• C) \(f ( x ) = 131.5\) if \(4 \leq x \leq 6\)
• D) \(f ( x ) = 0.75 x - 1355\) if \(4 \leq x \leq 8\)

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Definitions:

Femoral Vein

A major blood vessel in the thigh that carries deoxygenated blood from the lower limb back to the heart.

Anterior Tibial Vein

The anterior tibial vein is a blood vessel that drains oxygen-depleted blood from the front portion of the lower leg to the popliteal vein.

Elastic Tissue

A type of connective tissue composed of elastic fibers that allows many tissues in the body to resume their shape after stretching or contracting.

Smooth Muscle

This type of muscle is found within the walls of hollow organs such as blood vessels, the gastrointestinal tract, and the bladder, controlling involuntary movements.