Math Is Fun Forum
  Discussion about math, puzzles, games and fun.   Useful symbols: √ ∞ ≠ ≤ ≥ ≈ ⇒ ∈ Δ θ ∴ ∑ ∫ π -

Login

Username

Password

Not registered yet?

Post a reply

Go back

Write your message and submit
:) :| :( :D :o ;) :/ :P :lol: :mad: :rolleyes: :cool: | :dizzy :eek :kiss :roflol :rolleyes :shame :down :up :touched :sleep :wave :swear :tongue :what :faint :dunno
Options

Go back

Topic review (newest first)

bobbym
2013-09-30 09:26:50

They are done in post #102

Derick Mixon
2013-09-30 09:25:08

I have the first 2 right I need the last 2 done

bobbym
2013-09-25 02:15:15



Everywhere you see an x just plug in the number and then do the arithmetic.







Derick Mixon
2013-09-24 22:33:41

For numbers 17 through 20 use f(x) = x2 x + 2

find f(2)

 
Find f(0)

 
Find f(-4)

 
Find f(1)

Can you help me solve these

bobbym
2013-09-24 06:26:49

State the domain of y = x^2


State the range of y = x^2

I get the domain as R and the range as [0,∞)

State the domain of y = x^2 + 2


State the range of y = x^2  + 2

Domain is R and the range is all positive reals greater than or equal to 2.

Derick Mixon
2013-09-22 09:18:22

yes

bobbym
2013-09-22 04:28:58

And the 2, is that a power?

Derick Mixon
2013-09-22 04:24:06

The x value

bobbym
2013-09-22 03:57:29

What is x2?

Derick Mixon
2013-09-22 03:54:31

Can you show me how to solve them?

Derick Mixon
2013-09-22 03:45:47

State the domain of y = x2

 
State the range of y = x2

 
State the domain of y = x2 + 2

 
State the range of y = x2  + 2

 
State the domain of y = 2x2 + 3

 
State the range of y = 2x2 + 3

 
State the domain of y = x2 5

 
State the range of y = x2  - 5

 
State the domain of y = -x2

 
State the range of y = x2

bobbym
2013-09-22 03:19:51

Yes, I am.

Derick Mixon
2013-09-22 03:17:02

Are you in today?

bobbym
2013-09-20 22:40:34



Take 1 / 9 away from both sides.



Flip them both,

x = 3

For the last one:



Times both sides by 15x.



Divide both sides 4.

x = ( 14 / 4 ) = ( 7 / 2 )

Derick Mixon
2013-09-20 22:37:08

Did you do the rest yet?

Board footer

Powered by FluxBB