Compare the following functions:

f(x) = −4 sin(3x − π) + 2 g(x)

graph of a quadratic with points at 1, 0 and 3, negative 4 and 5, 0 h(x)

x y
−2 14
−1 9
0 6
1 5
2 6
3 9
4 14

Which function has the smallest minimum?
f(x)
g(x)
h(x)
All three functions have the same minimum
@Nnesha @Directrix @zepdrix @iambatman @whpalmer4 @Loser66 @Kainui

Question

Compare the following functions:


f(x) = −4 sin(3x − π) + 2	g(x)

graph of a quadratic with points at 1, 0 and 3, negative 4 and 5, 0	h(x)

x	y
−2	14
−1	9
0	6
1	5
2	6
3	9
4	14


Which function has the smallest minimum?
 f(x)
 g(x)
 h(x)
 All three functions have the same minimum
@Nnesha @Directrix @zepdrix @iambatman @whpalmer4 @Loser66 @Kainui

misty1212 · Answer

HI!!

anonymous · Answer

Helloo!!

misty1212 · Answer

the maximum  of sine is $-$ so the minimum of $-4\sin(whatever)+2$ is $-4+2=-2$

anonymous · Answer

right

misty1212 · Answer

the minimum value of h looks like it is 5

anonymous · Answer

yes it is 5

misty1212 · Answer

the quadratic function g looks like it has a minimum of -5

misty1212 · Answer

oh no it say -4 not -5
you wrote it in words right?

misty1212 · Answer

minus 4
that is the smallest minimum

anonymous · Answer

so the answer will be g(x)?

misty1212 · Answer

yes i would say $g(x)$ has the smallest minimum of -4

anonymous · Answer

Thank you soo muchh!! @misty1212

misty1212 · Answer

$$\color\magenta\heartsuit$$

anonymous · Answer

:)

anonymous · Answer

do you mind helping me on another one? <3 @misty1212

misty1212 · Answer

lol no of course not

anonymous · Answer

thank you!!

anonymous · Answer

here is the question

anonymous · Answer

What is the arc length when Θ = 3 pi over 5 and the radius is 7 cm?

 21 pi over 5cm
 12 pi over 5cm
 6 pi over 5cm
 3 pi over 35cm
@misty1212

misty1212 · Answer

$$\frac{3\pi}{5}\times 7$$

misty1212 · Answer

i guess $\frac{21\pi}{5}$

misty1212 · Answer

you ok now ? $\color\magenta\heartsuit$

anonymous · Answer

yes thx!!

anonymous · Answer

that @misty1212 seems pretty sharp

anonymous · Answer

what do u mean?

anonymous · Answer

gave you some good looking answers is all
how is it going today?

anonymous · Answer

good thank you!! how about yu?

anonymous · Answer

sad today

anonymous · Answer

my cat ran away, i hope she comes back

zepdrix · Answer

@satellite73 OH NO!! Mrs kitty whiskers ran away?
That's so sad. :c
Cat's. are. awesome.

anonymous · Answer

awwwwwwwwww oh nooooo!!! hopefully she does! @satellite73

anonymous · Answer

@zepdrix  can you plz help me?!

zepdrix · Answer

with what? 0_o what's going on?

anonymous · Answer

just a math question

zepdrix · Answer

what question 0_o

anonymous · Answer

What is the sine value of 2 pi over 3?

 negative 1 over 2
 1 over 2
 negative square root 3 over 2
 square root 3 over 2

zepdrix · Answer

|dw:1421895766703:dw|2pi/3 is located somewhere over here.

zepdrix · Answer

The sine of that angle corresponds to the y coordinate.

zepdrix · Answer

Do you have a chart or something you can look at?
This mostly just has to do with memorization :d

anonymous · Answer

no.. sorry :/

zepdrix · Answer

https://lelandmath.files.wordpress.com/2013/10/screen-shot-2013-10-14-at-7-19-46-pm.png

anonymous · Answer

OMG!! what the heck is THAT?!

zepdrix · Answer

you haven't seen that yet? 0_o mmm weird...

zepdrix · Answer

See the dot for the angle 2pi/3?
The y-coordinate corresponds to your sine value.

anonymous · Answer

ok so the answer is -1/2?

anonymous · Answer

@zepdrix

zepdrix · Answer

that's the x coordinate :O

anonymous · Answer

oh okay then it must be sqrt 3/2

zepdrix · Answer

yay good job \c:/

anonymous · Answer

thanks!!