Drill: Writing Perpendicular Line Equations

Grade 10·10 problems·~12 min·Digital SAT Math·topic·sat-alg-lin2-parperp

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Perpendicular Equations

A line is perpendicular to $y = 2x + 7$ and passes through $(4, 5)$ . Written as $y = mx + b$ , what is the value of $b$ ?