When using a quadratic equation in the form y = ax2 + bx + c to model the height of a projectile (y) over time (x), which of the following is always represented by the constant term?

The initial height of the projectile (A)

y is the height and x is time, so y=c at x=0 means at time 0, the height of projectile is c, or, the initial height of the projectile is c.

c, thus, is the initial height.

Step-by-step explanation:

answer:   x = 3 + √11     and     x = 3 - √11

step-by-step explanation:

x² - 6x + 9 = 11

(x - 3)² = 11

x - 3 = ±√11

    x = 3 ± √11

x = 3 + √11     and     x = 3 - √11