An object is launched from a platform. Its height (in meters) , x seconds after the launch, is modeled by h(x) = -5(x+1)(x-9) What is the height of the object at the time of launch?

check above link.

graphically?   well, you graph them both, the solutions is where they both intersect each other, since there are two solutions, meaning they will meet twice, or namely the linear will run into the quadratic curve twice, and where they meet, those x,y coordinates are the solutions to the system.

x² + 3x + 7 = 0       [ax² + bx + c]

a = 1

b = 3

c = 7

quadratic formula:

    (+/- is this ±)

plug in the numbers into the variables

your answer is a

agree

step-by-step explanation: