Answer:
C) 15 units
Step-by-step explanation:
As the two points have the same y-coordinate, they lie on the same horizontal line, y = -7.
In this case, we can find the distance between them by simply taking the absolute difference of their x-coordinates:
[tex]\textsf{Distance} = |x_2 - x_1| \\\\\textsf{Distance}= |-3 - 12| \\\\\textsf{Distance}= |-15|\\\\\textsf{Distance}=15[/tex]
So, the distance between the points (12, -7) and (-3, -7) is:
[tex]\huge\boxed{\boxed{15\; \sf units}}[/tex]
