A brand name has an 80 ​% recognition rate. If the owner of the brand wants to verify that rate by beginning with a small sample of 5 of randomly selected​ consumers, find the probability that exactly 4 of the 5 consumers recognize the brand name. Also, find the probability that the number who recognize the brand name is not 4

Answer is in the file below

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im not sure

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