Answer:
wish i could help but im in school so i cant see the picture<3:(
Step-by-step explanation:
Step-by-step explanation:
y = mX + c
3y = -3x - 1
divide by 3
y = -x -1/3
slope = -1 of this line and parallel lines
The gradient for a parallel line is the same.
perpendicular lines are negative reciprocals.
so all you have to do is re arrange it so y=Mx+b so the check out the gradients to what I listed above... remember y shouldn't have any number on it.
13 out of 6 are not defective because you have 16 in all and 3 are defective leaving 13 not defective