What must be true to prove that q ⊥ n?

A. The slope of q must be the reciprocal of the slope of n.

B. The slope of q must be the negative reciprocal of the slope of n.

C. The slope of q must be the slope of n multiplied by - 1.

D. The slope of q must be the slope of n multiplied by - 1n.

B

Step-by-step explanation:

TO prove that q is perpendicular to n they must have a slope that's an opposite reciprocal to each other. For example the slope for q could be - 5 first you must flip the equation so now its - 1/5 then you change the sign to positive so now it's 1/5. Opposite meaning change sign reciprocal meaning flip the fraction.