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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?