What is the explicit formula for this geometric sequence?
8, 4, 2, 1, ...

A geometric sequence can be defined recursively by the formulas a1 = c, an+1 = ran, where c is a constant and r is the common ratio.

Step-by-step explanation:

hope this helps you :)

ar, ar², ar³, ar⁴,

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

i think it will be 4feet long of what i comprehend