AIR MATH

Math Question

11. \( \overline{C D} \) has coordinates \( C(-1,9) \) and \( D(-7,1) \). If \( \overline{E F} \) is parallel to \( \overline{C D} \), what is the slope of \( \overline{E F} \) ?
A. \( \frac{3}{4} \)
B. \( \frac{4}{3} \)
C. \( -\frac{3}{4} \)
D. \( -\frac{4}{3} \)

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