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3.) A rocket carrying fireworks is launched from a hill 80 feet above a lake. The
rocket will fall into the lake after exploding at its maximum height. The
rocket's height above the surface of the lake is represented by
h=- 16t2 +64t + 80. How many seconds after the rocket launched will it
hit the lake?
Part A: Define your terms:
a=
b =
C=
Part B: Set up the quadratic formula:
І
-OEVO2 – 4 (0)
20.
D) Focus
00

ii6tyhj7 juj3yyj333ju jmyhthhtk7h jg hajj jiijh

answer: b. f(x) = (x + 2)^3 (x^2 - 7x + 3)^4

step-by-step explanation:

polynomials always have as many roots as their order. this is a 4th order polynomial- hence 4 roots!

complex roots of polynomials always come in pairs. the quadratic equation has the "+/-" in that will alwaysgenerate m+ni amd m-ni, so 7-2i must be a root of this polynomial equation.

the order of the numerator and denominator are both 2. so the horizontal asymptote is y=a2/b2 =7

verticle asymptotes are the forbidden x-values. f(x) becomes undefined at x=-3 because this value will cause a zero denominator.

a graph of r(x) will have vertical asymptotes at ±1 because these values will make the denominator zero. so the domain of the function cannot include ±1.

you 're wlecome! : )

cretdit to source

b. 2 and 4

step-by-step explanation: