Answer:
<em>the median is 21</em>
Step-by-step explanation:
<em>8 , 15 , 21 , 25 , 63 </em>
<em>that is what you have to do you would have to put them in order from least to greatest so then you would see the middle number which is 21</em>
The slope is the same as rate of change. In a linear graph, it is the change in y over the change in x.
D. y = 9 because it has a complete zero slope while the y-intercept of the equation is 9, so the equation is y = 9.
Check the picture below.

since the distance AB cannot be a negative value, thus is not -3-√(130).