if two lines are perpendiculer, which statement must be true A. Their are opposites B. Their slopes are equal. C. Their slope are negative reciprocals. D. Their slopes are reciprocals.

C.

Step-by-step explanation:

Perpendicular Lines have opposite slopes or meaning their slopes are negative reciprocals. Parallel Lines have the same slopes.

Perpendicular Lines Ex.

2/3 and -3/2

Parallel Lines Ex.

2/3 and 2/3

Hope this helps

answer: i think it's a

step-by-step explanation:

b

step-by-step explanation:

the equation of a line in point- slope form is

y - b = m(x - a)

where m is the slope and (a, b) a point on the line

calculate m using the slope formula

m = (y₂ - y₁ ) / (x₂ - x₁ )

with (x₁, y₁ ) = (0, 4) and (x₂, y₂ ) = (3, - 5) ← 2 points on the line

m = = = - 3

with m = - 3 and (a, b) = (3, - 5), then

y - (- 5) = - 3(x - 3), that is

y + 5 = - 3(x - 3) → b