A community for students.
Here's the question you clicked on:
 0 viewing
ali1029
 one year ago
Please help! how do you write y=x^22x3 in vertex and intercept form using the quadratic formula?
ali1029
 one year ago
Please help! how do you write y=x^22x3 in vertex and intercept form using the quadratic formula?

This Question is Closed

ali1029
 one year ago
Best ResponseYou've already chosen the best response.1@ganeshie8 @satellite73 do you guys know how to do this? :o

Mttblink
 one year ago
Best ResponseYou've already chosen the best response.0I think it is y=2x3

Mttblink
 one year ago
Best ResponseYou've already chosen the best response.0Oops I meant xD y=2x+1

ali1029
 one year ago
Best ResponseYou've already chosen the best response.1is that for vertex form or intercept form? :)

Mttblink
 one year ago
Best ResponseYou've already chosen the best response.0Oops damn I put that in slopeintercept... Geez I suck at math xD, I don't think I can help you on vertex

ali1029
 one year ago
Best ResponseYou've already chosen the best response.1hahah thanks for trying :)

ganeshie8
 one year ago
Best ResponseYou've already chosen the best response.1use the quadratic formula and find the xintercepts first

ali1029
 one year ago
Best ResponseYou've already chosen the best response.1can you help me figure out how to do that? thats where im stuck :(

ganeshie8
 one year ago
Best ResponseYou've already chosen the best response.1sure :) u knw the quadratic formula ?

ali1029
 one year ago
Best ResponseYou've already chosen the best response.1sorta :o im just so confused because we've been using so many different forms!

ganeshie8
 one year ago
Best ResponseYou've already chosen the best response.1dont wry, this is going to be very easy :) First, we find xintercepts using the quadratic formula.

ganeshie8
 one year ago
Best ResponseYou've already chosen the best response.1y=x^22x3 a = ? b = ? c = ?

ganeshie8
 one year ago
Best ResponseYou've already chosen the best response.1\(\large x = \frac{b \pm \sqrt{b^24ac}}{2a}\)

ganeshie8
 one year ago
Best ResponseYou've already chosen the best response.1you need to figure out a, b, c values. and plug them above to get the xintercepts

ali1029
 one year ago
Best ResponseYou've already chosen the best response.1so a=1 b=2 c=3? what i dont get is that it wants me to put that equation in intercept and vertex form but those have h & k :o

ganeshie8
 one year ago
Best ResponseYou've already chosen the best response.1b = 2 we will get to vertex/intercept forms later. first, get the xintercepts :)

ganeshie8
 one year ago
Best ResponseYou've already chosen the best response.1put them in the formula above, wat do u get for x = ?

ali1029
 one year ago
Best ResponseYou've already chosen the best response.11 becaue 1^2 is 1? let me do that equation

ganeshie8
 one year ago
Best ResponseYou've already chosen the best response.1use above, take ur time :)

ganeshie8
 one year ago
Best ResponseYou've already chosen the best response.1\(\large x = \frac{b \pm \sqrt{b^24ac}}{2a}\) \(\large x = \frac{2 \pm \sqrt{(2)^24 \times 1\times (3)}}{2(1)}\)

ali1029
 one year ago
Best ResponseYou've already chosen the best response.1i got 1 ± 4 .... is that close? :o

ganeshie8
 one year ago
Best ResponseYou've already chosen the best response.1\(\large x = \frac{b \pm \sqrt{b^24ac}}{2a}\) \(\large x = \frac{2 \pm \sqrt{(2)^24 \times 1\times (3)}}{2(1)}\) \(\large x = \frac{2 \pm \sqrt{4 + 12}}{2}\) \(\large x = \frac{2 \pm \sqrt{16}}{2}\)

ganeshie8
 one year ago
Best ResponseYou've already chosen the best response.1thats close, just a minor mistake u did... check once

ganeshie8
 one year ago
Best ResponseYou've already chosen the best response.1\(\large x = \frac{b \pm \sqrt{b^24ac}}{2a}\) \(\large x = \frac{2 \pm \sqrt{(2)^24 \times 1\times (3)}}{2(1)}\) \(\large x = \frac{2 \pm \sqrt{4 + 12}}{2}\) \(\large x = \frac{2 \pm \sqrt{16}}{2}\) \(\large x = \frac{2 \pm 4}{2}\) \(\large x = 1 \pm 2\)

ali1029
 one year ago
Best ResponseYou've already chosen the best response.1ohhh i see what i did wrong! thank you :) so know what do i do?

ganeshie8
 one year ago
Best ResponseYou've already chosen the best response.1that gives, \(x = 1+2 ~~~ or~~~~ x = 12\) \(x = 3, 1\)

ganeshie8
 one year ago
Best ResponseYou've already chosen the best response.1we're done wid using quadratic formula. we got the xintercepts : 3, 1

ganeshie8
 one year ago
Best ResponseYou've already chosen the best response.1so the intercept form would be : y = (x3)(x+1)

ganeshie8
 one year ago
Best ResponseYou've already chosen the best response.1wat about vertex form ? how to get \(h\), \(k\) ... any ideas ?

ali1029
 one year ago
Best ResponseYou've already chosen the best response.1wow that was easier than i thought! thank you :) & no, not too sure :(

ganeshie8
 one year ago
Best ResponseYou've already chosen the best response.1vertec form is also easy, \(h\) lies exactly at the middle of both the intercepts : \(h \) = \(\large \frac{3 + 1}{2}\)

ganeshie8
 one year ago
Best ResponseYou've already chosen the best response.1\(h \) = \(\large \frac{31}{2}\)

ganeshie8
 one year ago
Best ResponseYou've already chosen the best response.1\(h \) = \(\large \frac{2}{2}\)

ganeshie8
 one year ago
Best ResponseYou've already chosen the best response.1\(h \) = \(\large 1\)

ganeshie8
 one year ago
Best ResponseYou've already chosen the best response.1so vertex form wud be : \(y = (x1)^2 + k\)

ganeshie8
 one year ago
Best ResponseYou've already chosen the best response.1you still need to find \(k\)

ali1029
 one year ago
Best ResponseYou've already chosen the best response.1okay, so how do we find k now? :)

ganeshie8
 one year ago
Best ResponseYou've already chosen the best response.1put x = h = 1, in given quadratic. it gives u the \(k\) value

ganeshie8
 one year ago
Best ResponseYou've already chosen the best response.1y=x^22x3 put x = 1

ganeshie8
 one year ago
Best ResponseYou've already chosen the best response.1y = 1^2  2(1)  3 = 1 2 3 = ?

ganeshie8
 one year ago
Best ResponseYou've already chosen the best response.1yup ! thats ur \(k\)

ali1029
 one year ago
Best ResponseYou've already chosen the best response.1y=(x−1)^2+4 would be the answer? :)

ganeshie8
 one year ago
Best ResponseYou've already chosen the best response.1who ate the  sign before 4 ?

ali1029
 one year ago
Best ResponseYou've already chosen the best response.1i messed up again ._. so it would be y=(x−1)24?

ali1029
 one year ago
Best ResponseYou've already chosen the best response.1thank you so much!! you're amazing!! :) if it isnt too much too ask could you help me with two more equations similar to that? :)

ali1029
 one year ago
Best ResponseYou've already chosen the best response.1i need to figure out how to put y5=2(x+1)^2 in standard and intercept form & y=(x+2)(x3) in standard and vertex form :o

ganeshie8
 one year ago
Best ResponseYou've already chosen the best response.1wats the standard form ?

ganeshie8
 one year ago
Best ResponseYou've already chosen the best response.1y = ax^2 + bx + c this is the standard form right ?

ganeshie8
 one year ago
Best ResponseYou've already chosen the best response.1oh yes... thats right !

ganeshie8
 one year ago
Best ResponseYou've already chosen the best response.1y5=2(x+1)^2 add 5 both sides y = 2(x+1)^2 + 5

ganeshie8
 one year ago
Best ResponseYou've already chosen the best response.1next, use the formula \((a+b)^2 = a^2 +b^2 + 2ab\)

ganeshie8
 one year ago
Best ResponseYou've already chosen the best response.1y = 2(x+1)^2 + 5 = 2(x^2 + 1^2 + 2x ) + 5 = 2(x^2 + 1 + 2x) + 5

ali1029
 one year ago
Best ResponseYou've already chosen the best response.1would it be 2x^24x+3?

ganeshie8
 one year ago
Best ResponseYou've already chosen the best response.1standard form : y = 2x^24x+3

ganeshie8
 one year ago
Best ResponseYou've already chosen the best response.1y5=2(x+1)^2 to put this guy in intercept form, u need to find its xintercepts. so put y = 0 05=2(x+1)^2 5/2 = (x+1)^2 \(\pm \sqrt{5/2} = x+1\) \( 1 \pm \sqrt{5/2} = x\)

ganeshie8
 one year ago
Best ResponseYou've already chosen the best response.1those are our xintercepts

ganeshie8
 one year ago
Best ResponseYou've already chosen the best response.1can u put t he intercept form ?

ali1029
 one year ago
Best ResponseYou've already chosen the best response.1the intercept form is y=a(xp)(xq)

ali1029
 one year ago
Best ResponseYou've already chosen the best response.1so if the equation is −1±5/2, how do i solve the fraction part?
Ask your own question
Sign UpFind more explanations on OpenStudy
Your question is ready. Sign up for free to start getting answers.
spraguer
(Moderator)
5
→ View Detailed Profile
is replying to Can someone tell me what button the professor is hitting...
23
 Teamwork 19 Teammate
 Problem Solving 19 Hero
 Engagement 19 Mad Hatter
 You have blocked this person.
 ✔ You're a fan Checking fan status...
Thanks for being so helpful in mathematics. If you are getting quality help, make sure you spread the word about OpenStudy.