6. In the quadratic equation x2 + 8x - 2 = 0, what are the values of a, b, and c? a. a = 0, b = 3, C = -1
c. a = -3, b = 0, C = -1
b. a = 1, b = 8, C = -2
d. a = 3, b = 0, C = 1

Cherie works in retail and her weekly salary includes commission for the amount she sells. the equation s=400+0.15c models the relation between her weekly salary, s, in dollars and the amount of her sales, c, in dollars. interpret the slope of the equation.