An area is going to be cleared at Dockery Park for a new swing set. The location for the swing set will need to have an area of 240m2. If the length of the area is 20 feet long
what is the width of the area needed for the swing set?

your answer is #3 , 8 - 3 square root of 11

(a) x intercepts: -6 and 2

you can obtain these by solving the equation 0=x^2 +4x-12 using your favorite quadratic formula. but it is easy to verify -6 and 2 indeed satisfy this equation.

(b) y intercept: -12

this is obtained by setting x=0: 0^2+4*0-12 = -12

(c) the minimum value is: -16 (this is the vertex)

you can get the vertex by rewriting the equation into the form:

there is no global or local maximum as the function goes to infinity, so only in the limit sense: +infinity.

v=125

step-by-step explanation: