Question

The slope of a line is -1/7. What is the slop of a line that it perpendicular to it

Answer 1

ans: 7

solutions

m1= -1/7

m2 = ?

we know

for perpendicular

m1 × m2 = -1

-1/7 × m2 = -1

m2 = -1×(-7)

m2 = 7