Answer:
nice question you asked me dear
Slope (m) =0
θ =180°
distance (d) =15
ΔX =15
ΔY =0
6.875 average.
To calculate the average you add up all of the numbers and divide it by the number of numbers there are, in this case there are 4 numbers. So you add 3.25+6.5+7.25+10.5 and divide that by 4