Will mark brainliest! - which system of equations below has exactly one solution? a. y = –8x – 6 and y = –8x + 6 b. y = –8x – 6 and 1/2y = –4x – 3 c. y = –8x – 6 and y = 8x – 6 d. y = –8x – 6 and –y = 8x + 6

A 
The two equations are parallel. They have the same slope. You get two lines that never meet. The y intercept is -6 for the first one and + 6 for the second one.

B
Mutliply the second equation by 2
2(1/2y = -4x - 3)
y = -8x - 6
The two equations do not differ at all. There are an infinite number of solutions.

C
The slopes are different. One is plus 8 and the other is minus 8. These two equations will meet at exactly 1 point.

D
If you multiply the whole equation by - 1 you get the same thing as the first set of equations.
-1(-y = 8x +6)
y = -8x - 6

C<<<< Answer