If a, b,c, d are replaced by four different digits from 1 to 9, inclusive, then what's the largest possible value for a. bc + 0.d ? The other answers were completely off so im asking again. why does it say high school

the answer is c. hope this !

step-by-step explanation:

you didn't give me the choices, so i will just give you the graph so you can look at your choices and choose the right one.

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