What is the length of the segment of the number line whose endpoints satisfy x^2 - 16x + 3 = 0?
x^2 - 16x + 3 = 0 use quadratic fromula to find the 'zeroes' a =1 b = -16 c = 3
results in x = 8 +-sqrt(61) distance between these two points is 2 sqrt (61)