Question

@DanJS

Answer 1

this is B right? i just did this question with someone else but they were wrong for the last couple.. hahah

Answer 2

Try to graph f ' (x) from that description

Answer 3

doesnt have to be linear, but it is decreasing

Answer 4

First choice: f(x) has an inflection point at x=0?

Answer 5

that means that the concavity will change at x=0

Answer 6

Think of f'(x) as the velocity of an object....

The velocity starts out positive, then keeps decreasing, going to zero velocity , then keeps getting more negative velocity

Answer 7

The object is going in one direction and slows down to a stop and goes the other direction

Answer 8

so the position function of that description looks kina like say a parabola

Answer 9

Throwing a ball, starts at a huge + velocity, and has a constant acceleration opposing the motion, the ball slows to a stop (top of parabola) (where f '(x) = 0) and accelerates at the same constant rate in the opposite direction

Answer 10

see how if the f '(x) is constantly decreasing, with an initial positive value, that it describes the curved graph above

Answer 11

f ' (x) is the rate of change at any point on f (x)

Answer 12

the rate of change at f '(x) is the same as the horizontal tangent at the top of the curve of f(z)

Answer 13

Now that you can visualize what f looks like, take each answer one at a time

Answer 14

Inflection at x=0? concavity changes, NO, it is always concave downwards

Answer 15

lol are you kinda with me ?

Answer 16

The graph has a relative maximul at x=0? looks like it

Answer 17

oops didnt read that right hahhha

Answer 18

the graph is always concave down...YES

Answer 19

There are no inflection points on the graph of f... so the first one is the False one