Find the equation of the line that has the given properties. Write the equation in slope-intercept form, if possible. Contains (7, -1); perpendicular to the line 5x - 8y = -21
A. -8x + 5y = -21
B. 5x + 8y = -51
C. -8x + 5y = -51
D. -8x - 5y = -51
Answer: D
Mathematics
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