If the function y = xa − 31 is a linear function, what is the value of a? A. 1
B. 2
C. 3
D. 4

lockers 1, 4, 9, 16, 25, 40, and 49 are open

i ran through it by the other answer is wrong

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

answer: 0

step-by-step explanation: the positive, like 5, + its opposite, like -5 would be 0

5+(-5)=0, or 5-5=0