The equation 9(u – 2) + 1.5u = 8.25 models the total miles michael traveled one afternoon while sledding, where u equals the number of hours walking up a hill and (u – 2) equals the number of hours sledding down the hill. which is the value of u?

x equals 1

step-by-step explanation:

f(4)=f(×)

x=1

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