Line y = 2/3x C 5 is perpendicular to line:

Line y = 2/3x C 5 is perpendicular to line:
A . y = 2/3x + 5
B . y = 5 C 2/3x
C . y = C2/3x C 5
D . y = 2/3x C 5
E . y = C2/3x + 5

Answer: E

Explanation:

Perpendicular lines have slopes that are negative reciprocals of each other. The slope of the line given is 2/3. The negative reciprocal of 2/3 is 3/2. Every line with a slope of C3/ 2 is perpendicular to the given line; y = C3/2x + 5 is perpendicular to y = 2/3x C 5.