Which of the following key characteristics is NOT true of an exponential function? A It does not have a vertex. B The domain is all real numbers. C Rate of change is not constant. D Maximum number of 푥-intercepts is two.

A. because I am a professor I know these things

Step-by-step explanation:

Second option 5, 240°

Magnitude of vector A=10
Direction angle of vector A=60°

-A/2 is a vector with magnitude equal to the half of the magnitude of the vector A and direction opposite to the direction of vector A, because the minus sign, then:

Magnitude of vector -A/2=Magnitude of vector A / 2 =10/2→
Magnitude of vector -A/2=5

Direction angle of vector -A/2=Direction angle of vector A + 180°=60°+180°→
Direction angle of vector -A/2=240°

Second option 5, 240°