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that1chick
 2 years ago
Rewrite y = 3x2  24x + 10 in general form.
that1chick
 2 years ago
Rewrite y = 3x2  24x + 10 in general form.

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Mertsj
 2 years ago
Best ResponseYou've already chosen the best response.1General Form You have already seen how to graph a quadratic function when it is in its standard form. Recall that the standard form of a quadratic function looks like: y=a(xh)^2+k But how do you graph a quadratic function when it is in its general form? The general form of a quadratic function looks like this: y=ax^2+bx+c

Mertsj
 2 years ago
Best ResponseYou've already chosen the best response.1So how does your author define general form?

that1chick
 2 years ago
Best ResponseYou've already chosen the best response.0h=x, k=y... the problem I'm having with this one is splitting the 3 in 3x^2...?

that1chick
 2 years ago
Best ResponseYou've already chosen the best response.0Its just asking to rewrite it not graph it... heres what I have so far:

that1chick
 2 years ago
Best ResponseYou've already chosen the best response.010 on both sides Y10=3x^224x 24/2=12 12^2=144 Y10=3x^224x+144

that1chick
 2 years ago
Best ResponseYou've already chosen the best response.0Its in standard form, I want general form(:

Mertsj
 2 years ago
Best ResponseYou've already chosen the best response.1Let's write it like this: dw:1362857059987:dw

Mertsj
 2 years ago
Best ResponseYou've already chosen the best response.1Now complete the square inside the parentheses

that1chick
 2 years ago
Best ResponseYou've already chosen the best response.0OH! gcf! of course!!:D

that1chick
 2 years ago
Best ResponseYou've already chosen the best response.0Thank you(: I forgot to look for a gcf

that1chick
 2 years ago
Best ResponseYou've already chosen the best response.0Y10=3x^224x+144 Now factor the GCF y10=3(x^28x+48) y10=3(x4)(x+12) +10 to both sides Y=3(x4)(x+12) +10 Right?

that1chick
 2 years ago
Best ResponseYou've already chosen the best response.0how did you get 16^^

Mertsj
 2 years ago
Best ResponseYou've already chosen the best response.1No. You cannot add 48 to one side without adding it to the other side. Did you see in my example that I added 16 inside the parentheses to complete the square? But I was really adding 48 to the right side because there is a 3 outside the parentheses. So then I subtracted 48 so there would be a net change of 0. Of course I could have added 48 to the left side which would have accomplished the same purpose.

Mertsj
 2 years ago
Best ResponseYou've already chosen the best response.116 is the number that completes the square for x^2+8x

that1chick
 2 years ago
Best ResponseYou've already chosen the best response.0Y10=3x^224x GCF Y10=3(x^28x) Complete the square 8/2=4 4^2=16 y10=3(x^28x16) Simplify y10=3(x4)^2 +10 to both sides y=3(x4)^2 +10 Right?

that1chick
 2 years ago
Best ResponseYou've already chosen the best response.0and by simplify I mean find the binomial...(:

Mertsj
 2 years ago
Best ResponseYou've already chosen the best response.1So let's multiply out your result: \[y=3(x4)^2+10=3(x^28x+16)+10=3x^224x+48+10=\]

Mertsj
 2 years ago
Best ResponseYou've already chosen the best response.1Is that the problem you started with?

Mertsj
 2 years ago
Best ResponseYou've already chosen the best response.1If it isn't, then what you have done is changed the original problem instead of keeping the original problem and expressing it in another form.

that1chick
 2 years ago
Best ResponseYou've already chosen the best response.0What am I doing wrong?

Mertsj
 2 years ago
Best ResponseYou've already chosen the best response.1When you add 48 to the right side, you then have 2 choices: 1. subtract 48 from the right side 2. Add 48 to the left side.

that1chick
 2 years ago
Best ResponseYou've already chosen the best response.0y10=3x^224x y10=3x^224x+48 +48 y+38=3x^224x+48

that1chick
 2 years ago
Best ResponseYou've already chosen the best response.0y+38=3(x^28x+16) y+38=3(x4)^2 Right so far?

that1chick
 2 years ago
Best ResponseYou've already chosen the best response.0Ok I solved it out on paper(: thank you for helping me

that1chick
 2 years ago
Best ResponseYou've already chosen the best response.024/2=12 12^2=144........

Mertsj
 2 years ago
Best ResponseYou've already chosen the best response.1That is true. Not sure it is very useful.
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