Which of the following is a non-linear sequence? 3, 6, 9, 12,
1, 1, 2, 3,
21, 19, 17, 15,
-5, -2, 1, 4,

b

step-by-step explanation:

the word superfluous means unnecessary

for this case we have by definition, if two lines are perpendicular, then the product of their slopes is -1.

then, given the following line:

so,

we are looking for m_ {2}:

then, the line is given by:

we find "b" replacing the given point:

finally, the equation is:

option c

multiple all that

step-by-step explanation:

27×17