Three consecutive integers have a sum of –21. which equation can be used to find the value of the three numbers?

y + (y+1) + (y+2) = -21

combine like terms

3y +3 = -21

subtract 3 from each side

3y = -24

divide by 3

y = -8

y+1 = -7

y+2 = -6

-8, -7, -6

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

probably the last option

step-by-step explanation: