What is a function in math?

if you explain I will make you brainiest!

A function is an equation in math that connects an input to a given output.

Step-by-step explanation:

my answer got deleted but it's a

step-by-step explanation:

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