Suppose that you deposit $300 a month into an account for 5 years that
pays 4.5% interest per year, compounded monthly. Find the future amount
of your plan at the end of 5 years.

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