Question

@satellite73

Answer 1

(-4,0) right?

Answer 2

it is concave up where the derivative is increasing

Answer 3

O,O NEVER KNEW 100ss was achievable

Answer 4

ohh so (0,4)

Answer 5

so no, not \((-4,0)\)

Answer 6

i dont know why i was going down..

Answer 7

lets go slow

Answer 8

the first derivative tells you the intervals over which the function is increasing and decreasing
if the first derivative is positive, then the function is going up
if it is negative, then the function is going down

concavity is a different story

Answer 9

the function is concave up if the second derivative is positive, i.e. where the first derivative is INCREASING

Answer 10

where is your derivative INCREASING (going up)?

Answer 11

4?