Choose the graph of the following function: f(x) = 2 cos(3x)

a. graph a
b. graph b
c. graph c
d. graph d

Which facts are true for the graph of the function below? check all that apply. f(x) = log8 x. (30 points pls )

The chs baseball team was on the field and the batter popped the ball up. the equation b(t)=80t-16•16+3.5 represents the height of the ball above the ground in feet as a function of time in seconds. how long will the catcher have to get in position to catch the ball before it hits the ground? round to the nearest second

Icould really use some with this question.