The graph of the function f(x) = (x + 2)(x + 6) is shown below. which statement about the function is true? the function is positive for all real values of x where x > –4. the function is negative for all real values of x where –6 < x < –2. the function is positive for all real values of x where x < –6 or x > –3. the function is negative for all real values of x where x < –2.

he function is negative for all real values of x where –6 < x < –2 (True)

Step-by-step explanation:

(x+2) can be written as

x + 2 = 0

x = -2

(x+6) can be written as

x + 6 = 0

x = -6

Both of these can be written as -6 < x < -2

1) he function is positive for all real values of x where x > –4.

(All values are between -2 and -6 and they are negative therefore this statement is false.)

2) True (explained above)

3) The function is positive for all real values of x where x < –6 or x > –3.

(x>-2 includes -3 but x>-3 does not include -3 therefore, this is false.)

4) The function is negative for all real values of x where x < –2. (It is not negative for all values as there is a limit between -2 and -6.)

!!

since the airplane is moving with constant speed then the distance travelled can be calculated by x=u*t

in km/h would be:

x=640*3.5=2.240 km

in m/s would be:

u=640 km/h= 640.000 m/h =640.000/ 3600 m/s =177.8 m/s

t= 3.5 h= 3.5 * 3600 s=12.600 s

then x=u*t= 177.8*12.600= 2.240.280 m

correct answer:

b.(19,-2)