1. Questions

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. 👍
  2. 👎
  3. 👁
hellogoodbie

  1. We just did.

    1. 👍
    2. 👎
    drwls

  2. X+2 = 3 - 5

    1. 👍
    2. 👎
    Joel

  4. X + 2 = - 2

    1. 👍
    2. 👎
    Joel

  5. Is mc022-1.jpg a factor of mc022-2.jpg? If it is, write mc022-3.jpg as a product of two factors.

    1. 👍
    2. 👎
    lucretiaspain

Respond to this Question

First Name

Your Response

Similar Questions

  1. Physics

    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 . physics - bobpursley, Saturday, November 20, 2010 at 4:06pm power=

  2. language arts

    what is the theme in January by john updike? is it the heat from January or the coldness from january

  3. Physics

    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 . physics - bobpursley, Saturday, November 20, 2010 at 4:06pm power=

  4. Math

    In Canada, the number of girls playing organized ice hockey from January 1990 to January 2010 increased by approximately 4162 girls per year. In January 2000, there were approximately 45 400 girls playing organized ice hockey. a.

  1. English

    Posted by rfvv on Monday, February 2, 2015 at 9:30pm. Posted by rfvv on Tuesday, January 27, 2015 at 10:03pm. Is he doing well in class? 1. - No, he isn't. You see, he can't read or write. 2. - No, he isn't. You know, he can't

  2. Math

    Rainbow Harbor Cruises charges $16/adult and $8/child for a round-trip ticket. The records show that, on a certain weekend, 900 took the cruise on Saturday and 600 took the cruise on Sunday. The total receipts for Saturday were

  3. algebra-Plz help

    Posted by bailey on Monday, January 8, 2007 at 8:32pm. Posted by bailey on Monday, January 8, 2007 at 2:12pm. The area of a rectangular blanket in square centimetersis 40x^2+2x-65. The width is 4x-5cm^2. Find the dimensions of the

  4. math

    Eliza Savage received a statement from her bank showing a checking account balance of $324.18 as of January 18. Her own checkbook shows a balance of $487.38 as of January 29. The bank returned all of the cancelled checks but

  1. 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

  2. math help

    Posted by grant on Saturday, May 12, 2007 at 9:20am. The table shows the depth (d metres) of water in a harbour at certain times (t hours) after midnight on a particular day. time t (hours) 0 1 2 3 4 5 6 7 8 9 10 11 12 13 and the

  3. English

    Posted by rfvv on Saturday, May 22, 2010 at 2:09am. 1. How about goind economics camp? 2. How much did you spend? I bought a $50 shirt and a $5 socks. (Would you check the expressions? Please correct incorrect expressions?)

  4. Chem- Dr. Bob!

    Posted by Rachel on Thursday, January 20, 2011 at 3:57pm. Does anyone know where I can get an image of the valence bond model for maleic acid? ie. showing the pi and sigma bonds and indicating the hybridization (sp2, sp3.. ) OR

You can view more similar questions or ask a new question.