Question

What is the rate of change from x = 0 to x = pi over 2?

8 over pi

pi over 8

negative 8 over pi

negative pi over 8

Answer 1

i dont have a clue on this. probably because im half asleep trying to finish xD

Answer 2

Well, the brain does need sleep to function, I'll try to at least let you borrow mine as best as I'm able.

Answer 3

thank you c':

Answer 4

no probs, just to check, you are not in Calculus class right? I just want to make sure that I use the right math.

Answer 5

Nu, its trig.

Answer 6

OK, good, that makes this easier.

Answer 7

Rate of change is just slope. And slope is just rise/run. Does that review make sense so far?

Answer 8

Yess.

Answer 9

K, so we just need to find the rise and the run from x = 0 to x = pi/2

Answer 10

Or you could use the fancy slope formula m = (y2 - y1)/(x2 - x1) whatever you like

Answer 11

Well, the r So its run is pi. so its either A or C?

Answer 12

wait, what did i just say. LOL

Answer 13

lol, no worries, the run is pi/2 right? We go from 0 to pi/2.

Answer 14

Yeah.

Answer 15

OH Wait, is it pi/8

Answer 16

Sadly, not pi/8, but don't panic, we are almost there.

Answer 17

-cry.

Answer 18

lol, the rise is 4 and the run is pi/2 so we need to calculate 4/(pi/2)

Answer 19

invert and multiply the pi/2

Answer 20

OH 8 OVER PI.

Answer 21

EXACTLY!

Answer 22

A?

Answer 23

Yep, Not too bad for being half-asleep

Answer 24

Right, mah gawd.

Answer 25

lol