# algebra 2

Posted by hellogoodbie on Saturday, January 16, 2010 at 3:24pm.

Posted by hellogoodbie on Saturday, January 16, 2010 at 2:59pm.

How is this problem done?

IF f(x)=2x^2-8x-3 FIND f(-2)

algebra 2 - bobpursley, Saturday, January 16, 2010 at 1:42pm
Put in for x the value -2, and compute f(-2)

algebra 2 - hellogoodbie, Saturday, January 16, 2010 at 1:47pm
so is the answer f=21/2? if that is right, thank you bobpursley

algebra 2 - drwls, Saturday, January 16, 2010 at 3:02pm
The answer has to be an integer. In this case, it is 2*4 - 8*(-2) - 3 = 21

algebra 2 - hellogoodbie, Saturday, January 16, 2010 at 3:06pm
where did u get the 4 from?

algebra 2 - bobpursley, Saturday, January 16, 2010 at 3:45pm
The four came from (x2)

two squared is 4

algebra 2 - hellogoodbie, Saturday, January 16, 2010 at 3:49pm
Wow, I'm so confused. Can somebody just solve this problem step by step please?

1. 👍 0
2. 👎 0
3. 👁 163
1. We just did.

1. 👍 0
2. 👎 0
posted by drwls
2. X+2 = 3 - 5

1. 👍 0
2. 👎 0
posted by Joel
3. X + 2 = - 2

1. 👍 0
2. 👎 0
posted by Joel
4. Is mc022-1.jpg a factor of mc022-2.jpg? If it is, write mc022-3.jpg as a product of two factors.

1. 👍 0
2. 👎 0

## Similar Questions

1. ### algebra 2

Posted by hellogoodbie on Saturday, January 16, 2010 at 2:59pm. How is this problem done? IF f(x)=2x^2-8x-3 FIND f(-2) algebra 2 - bobpursley, Saturday, January 16, 2010 at 1:42pm Put in for x the value -2, and compute f(-2)

asked by hellogoodbie on January 16, 2010
2. ### algebra 2

How is this problem done? IF f(x)=2x^2-8x-3 FIND f(-2) algebra 2 - bobpursley, Saturday, January 16, 2010 at 1:42pm Put in for x the value -2, and compute f(-2) algebra 2 - hellogoodbie, Saturday, January 16, 2010 at 1:47pm so is

asked by hellogoodbie on January 16, 2010
3. ### algebra 2

How is this problem done? IF f(x)=2x^2-8x-3 FIND f(-2) algebra 2 - bobpursley, Saturday, January 16, 2010 at 1:42pm Put in for x the value -2, and compute f(-2) algebra 2 - hellogoodbie, Saturday, January 16, 2010 at 1:47pm so is

asked by hellogoodbie on January 16, 2010
4. ### physics

Posted by michelle quendarsv on Saturday, November 20, 2010 at 5:26pm. Posted by michelle quendarsv on Saturday, November 20, 2010 at 3:55pm. if it takes 726 watts of power to move a mass 36 meters in 14 seeconds, what is the

asked by michelle quendarsv on November 20, 2010
5. ### physics - last question

Sam is sitting in her fishing boat watching a trout swim below the surface. She guesses the apparent depth of the trout at 2.0m. She estimates that her eyes are about 1.0 m above the water's surface, and that the angle at which

asked by Sarah N H on January 16, 2010
6. ### physics

Posted by michelle quendarsv on Saturday, November 20, 2010 at 3:55pm. if it takes 726 watts of power to move a mass 36 meters in 14 seeconds, what is the mass? i really need like, step by step help please? asap. thanks, michelle

asked by michelle quendarsv on November 20, 2010
7. ### physics - another question

Sam is sitting in her fishing boat watching a trout swim below the surface. She guesses the apparent depth of the trout at 2.0m. She estimates that her eyes are about 1.0 m above the water's surface, and that the angle at which

asked by Sarah N H on January 16, 2010
8. ### Chemistry Equation(again!)

Posted by chrissy on Saturday, January 6, 2007 at 1:23pm. In a lab expirement you add copper(II)nitrate to pure zinc. Write a balanced equation for this expirement and predict if a reaction will occur. For Further Reading

asked by chrissy-needs Chem help ASAP on January 6, 2007
9. ### English-help needed

I also thought that both are acceptable. However, I am confused because we usually write "The shoe manufacturer" and "The clothes manufacturer" but not "The shoe's manufacturer" or "The clothes' manufacturer". Can you help me on

asked by annie on January 8, 2011
10. ### English

Posted by rfvv on Saturday, September 25, 2010 at 9:16am. 1. Yesterday was his 100th day. 2. one hundredth day 3. a hundredth day (How can we read '100th day'?) English - Writeacher, Saturday, September 25, 2010 at 9:41am Do you

asked by rfvv on September 26, 2010

More Similar Questions