Question

What is the rate of change from x = π to x = 2π?

Answer 1

Is it \[-8/\pi\]

Answer 2

looks like it goes from \(4\) to \(-4\) on that interval, so you might say the average rate of change is \(-\frac{8}{\pi}\)

Answer 3

yeah, what you said

Answer 4

See I could do this

Answer 5

@satellite73

Answer 6

@hartnn

Answer 7

sorry but there is a mistake in the question
the lowest point of none of those is at \(t=0\) because \(\sin(0)=0\)

Answer 8

So what do I put?

Answer 9

i guess the overworked underpaid graduate student living on ramen noodles had a couple beers before writing this but i guess you are supposed to say D
that one has period \(10\) and also goes from \(30\) to \(70\) but it is not the minimum at \(t=0\) for sure

Answer 10

write them and tell them there is a mistake
the minimum value of sine is \(-1\) which occurs not at \(\sin(0)\) but elsewhere

Answer 11

@jim_thompson5910 Is it D?

Answer 12

why do you think it's D?

Answer 13

@jim_thompson5910 Is it D, if not what is the answer

Answer 14

it sounds like you're making a random guess at D

Answer 15

Someone told me it is D, is it? @jim_thompson5910

Answer 16

did they explain how they chose D?

Answer 17

No but is it?

Answer 18

what is the period of choices A and B?

Answer 19

I am not sure?

Answer 20

in general, the period of

y = A*sin(Bx-C) + D

is

T = 2pi/B

Answer 21

SO what is the correct answer?

Answer 22

for choices A and B, we have B = 10

So

T = 2pi/B

T = 2pi/10

T = ??

Answer 23

So is it D?