Question

Given below are descriptions of two lines.

Line 1: Goes through (-12,-65) and (-3,-11)

Line 2: Goes through (-10,35/3) and (-15,25/2)

The slope of Line 1 is m=

The slope of Line 2 is m=

Finally, which of the following is true?

Line 1 is parallel to Line 2.
Line 1 is perpendicular to Line 2
Line 1 is neither parallel nor perpendicular to Line 2

how do I perform slope formula with fractions