Answer the Question on the Basis of the Following Five $\quad$

Answer the question on the basis of the following five data sets wherein it is assumed that the variable shown on the left is the independent variable and the one on the right is the dependent variable.Assume in graphing these data that the independent variable is shown on the horizontal axis and the dependent variable on the vertical axis. $\quad$$\quad$ (1) $\quad$$\quad$$\quad$$\quad$ (2) $\quad$$\quad$$\quad$$\quad$ (3) $\quad$$\quad$$\quad$$\quad$ (4) $\quad$$\quad$$\quad$$\quad$ (5)
\begin{array}{rl}{J} & K \\\hline 0 & 10 \\40 & 20 \\80 & 30 \\120 & 40 \\160 & 50 \\200 & 60\end{array}\begin{array}{rr}\mathrm{L} & \mathrm{M} \\\hline 0 & -15 \\30 & -5 \\60 & 5 \\90 & 15 \\120 & 25 \\150 & 35\end{array}\\begin{array}{rl}\mathrm{N}& \mathrm{P} \\\hline 100 & 40 \\80 & 50 \\60 & 60 \\40 & 70 \\20 & 80 \\0 & 90\end{array}\begin{array}{rc}\mathrm{R}& \mathrm{T} \\\hline 0 & -15 \\20 & -25 \\40 & -35 \\60 & -45 \\80 & -55 \\100 & -65\end{array}\begin{array}{rr}\mathrm{U} & \mathrm{V }\\\hline 0 & 0 \\5 & 10 \\10 & 20 \\15 & 30 \\20 & 40 \\25 & 50\end{array} Refer to the data sets.The equation for data set 3 is:

A) P = 90 - .5N.
B) P = 90 + .5N.
C) P = .5N.
D) P = 40 + .5N.

Correct Answer:

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