If z, y, and a are the midpoints of triangle vwx, what is true about ay and xv

What are the soultion(s) to the quadratic equation 40- x^2=0

What is the upper quartile in the box plot?

Which best describes the function on the graph? direct variation; k = −2 direct variation; k = -1/2 inverse variation; k = −2 inverse variation; k = -1/2