I worked out the problem hope it helps
Perpendicular lines have slopes that are negative reciprocals to each other, that is, if one slope is a/b, the other is -b/a
in this case, the given slope is 1/3, so the other line's slope is -3/1, which is -3
from the graph we see that the y intercept of line b is -4, so the equation of line b is: y=-3x-4
Answer:
b
Step-by-step explanation:
step by step explanation I'm probly wrong
210 - ( 30 * x )
**I assume the question asks for total minutes.