Let's compute the discriminant using this formula
D = b^2 - 4ac
in this case, a = 16, b = -8 and c = 1
Plug these values into the formula to get
D = b^2 - 4ac
D = (-8)^2 - 4(16)(1)
D = 64 - 64
D = 0
Since the discriminant is 0, this means that there is exactly 1 solution. This 1 solution corresponds to exactly 1 root or x intercept
So this parabola touches the x axis at exactly one pointÂ
