Got Homework?
Connect with other students for help. It's a free community.
Here's the question you clicked on:
 0 viewing
Which one of these equations would make a graph with a downward facing parabola with an x intercept of 3 and a y intercept of 3 y+1=(x4)^2; y= x^2+3x4; y=(x+1)(x3); y=(x+1)(x3)
 2 years ago
 2 years ago
Which one of these equations would make a graph with a downward facing parabola with an x intercept of 3 and a y intercept of 3 y+1=(x4)^2; y= x^2+3x4; y=(x+1)(x3); y=(x+1)(x3)
 2 years ago
 2 years ago

This Question is Closed

AntiMatterBest ResponseYou've already chosen the best response.1
All right, when you graph the function \[y=x^{2}\] you get a parabola, centered at the origin, it faces up
 2 years ago

LagrangeSon678Best ResponseYou've already chosen the best response.0
solved it, go to you original post
 2 years ago

AntiMatterBest ResponseYou've already chosen the best response.1
so here you have 4 equations
 2 years ago

AntiMatterBest ResponseYou've already chosen the best response.1
\[y+1=(x4)^2\] \[y= x^2+3x4\] \[y=(x+1)(x3)\] \[y=(x+1)(x3)\]
 2 years ago

kassiaBest ResponseYou've already chosen the best response.0
i saw that you solved it for a second and then the computer im on decided to be uncoperative so i can no longer view it is it possible for you to copy and paste sorry for the hassle
 2 years ago

LagrangeSon678Best ResponseYou've already chosen the best response.0
The answer to your question is : y=(x+1)(x3). Why? becuase from the factored form we see that there will be an xintercept at (3,0). TO get the y intercept you have to replace x with zero and evluate. you will get (0,3).
 2 years ago

AntiMatterBest ResponseYou've already chosen the best response.1
you want an x intercept of 3, therefore then y=0, the function will x will be 3
 2 years ago

LagrangeSon678Best ResponseYou've already chosen the best response.0
Also we know this a downward facing parabola because of the negative sign
 2 years ago

kassiaBest ResponseYou've already chosen the best response.0
so how do you tell which equation will make what type of parabola?
 2 years ago

LagrangeSon678Best ResponseYou've already chosen the best response.0
Will a downward facing parabola should have a negative sign on the leading term. It is best to expand y=(x+1)(x3), You should get y=x^22x3
 2 years ago

LagrangeSon678Best ResponseYou've already chosen the best response.0
now that you have this expaned, you can see that this indeed will be a parabola because of the x^2 term. Then you also have the factored form. To get the x and y intecepts, in this case, it is good to use the factored from. To get yint set x to be zero and solve. To get xintercpet set y to be zero and solve.
 2 years ago

AntiMatterBest ResponseYou've already chosen the best response.1
so starting with \[y=x^2\] we can transform this into the equation we want. so y intercept of 3, that means when x = 0 the function will equal 3, therefore, consider the basic parabola, \[3=(0^2)\], so you need to add 3 therefore it becomes \[y=x^2 + 3\]
 2 years ago

AntiMatterBest ResponseYou've already chosen the best response.1
now consider the x intercept of 3, that means when y=0, the function will equal 3.... we now have \[y=x^2+3\]
 2 years ago

AntiMatterBest ResponseYou've already chosen the best response.1
we want this function to me moved to the right 3 units
 2 years ago

AntiMatterBest ResponseYou've already chosen the best response.1
sorry, this isn't the right approach, let's just analyze the given functions, however, it seems your question was already answered
 2 years ago
See more questions >>>
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.