Question

f(x)=3^-x tell whether the function is increasing, decreasing or not changing when x=1. if it is increasing or decreasing tell wether the rate of change is slow or fast

Answer 1

tell wether the rate of change is slow or fast

Answer 2

how to tell

Answer 3

i know it is decreasing

Answer 4

okay, it would be slow

Answer 5

how

Answer 6

but it is a stupid question, slow and fast are general terms

Answer 7

there is no rule where it "slow" or "fast"

Answer 8

i know but asks in the question

Answer 9

i would guess "slow", but there is no way to mathematically prove.. But because our slope at x=1 is -0.3662042 it is a generally slight incline

Answer 10

i dont want to prove by just looking at the graph how do u knoww

Answer 11

because the slope is less than 1 i would say it is a slight incline of slope

Answer 12

ohk thx

Answer 13

so x^2+2x-2 at x=1 this one is increasing am i right

Answer 14

yes it is increasing with a slope of dy/dx=4 at x=1.. I would say it is increasing FAST

Answer 15

ERUKA!!!!! i got it thx @baldymcgee6 u saved my day

Answer 16

you're welcome