Find the value of c that makes the expression a perfect square trinomial. x² – 18x+c

A)
36
B)
54
0)
72
D)
81

justin bieber ml.

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