Question

graph in comments below!!


What is the rate of change between the interval x = π and x = three pi over two ? (1 point)


pi over 16
negative 16 over pi
pi over 4
negative 4 over pi

Answer 1

what is the function?

Answer 2

ok i see it
what is \(y\) where \(x=\pi\)?

Answer 3

y would equal 7

Answer 4

yes it would
now what is \(y\) where \(x=\frac{3\pi}{2}\)?

Answer 5

y would equal -1

Answer 6

yes
now, very carefully, we aer going to compute the slope of the line between the two points \[(\pi,7)\] and \[(\frac{3\pi}{2},-1)\]
ready

Answer 7

this is where you say, "yes, ready to compute \[\frac{y_2-y_1}{x_2-x_1}\]"

Answer 8

ok, so it would be -1 - 7 over 3pi/2 over pi ???

Answer 9

yes, if you change that last "over" to "minus"

Answer 10

oh oops typo hehe thats what i meant

Answer 11

-1 - 7 over 3pi/2 - pi
thought so
now for some arithmetic

Answer 12

\[-1-7=?\]

Answer 13

-8

Answer 14

ok so far so good
now what is \[\frac{3\pi}{2}-\pi\]? (no decimals!!)

Answer 15

btw now is not a good time to guess at the answer, we really do have to do all the work

Answer 16

2pi/3 ?? sorry if thats wrong

Answer 17

yeah it is wrong, dont be sorry don't let the pi's throw you
think of it as \[\frac{3}{2}-1\]

Answer 18

oh! that 1/2

Answer 19

right
so now we have \[\huge \frac{-8}{\frac{\pi}{2}}\]

Answer 20

dividing by a fraction same as multiplying by the reciprocal, get \[\frac{-16}{\pi}\]

Answer 21

which i hope is a choice

Answer 22

oh, it is
whew

Answer 23

oh dang none of my replies are posting sorry about that. but thank you so much for your help!!!

Answer 24

yw
how many squid sisters are there?

Answer 25

just two!! callie and marie

Answer 26

sounds like enough
you done?

Answer 27

yes! thank you so much!!

Answer 28

yw
now go do something more enjoyable, ttyl

Answer 29

ok!!