How to tell if a function is rational or irrational?

What are the values of a, b, and c in the quadratic equation 0 = x2 – 3x - 2? a = 1, b = 3, c = 2 a=, b = -3,c=-2 a = 1, b = 3, c= 2 a = 1.0= -3, c = 2

Draw a scaled copy of the circle using a scale factor of 2

Assume that y varies inversely with x. if y=1.6 when x=0.5 find x when y=3.2