In the following function defined by an equation in the form y = a x squared + b x + c, identify the values of a, b, and c. y = 5 x squared + 2 x minus 1

a. a = negative 1, b = 2, c = 5
b. a = negative 2, b = 5, c = 1
c. a = 1, b = 5, c = 2
d. a = 5, b = 2, c = negative 1