Why is a box plot useful for representing certain types of data

Which values for a and b will create infinitely many solutions for this system of equations? ax-y=8 2x+y=b

Compare these two waves: the blue and orange waves have the same pitch, but the blue wave is louder. the blue and orange waves have the same volume, but the blue wave has a higher pitch. the orange wave has a higher pitch, but the blue wave is louder. the blue wave has a higher pitch, but the orange wave is louder.

Complete the standard form of the equation that represents the quadratic relationship displayed above, where a, b, and c are rational numbers.