Sunday
November 23, 2014

Homework Help: algebra

Posted by Marissa on Tuesday, August 21, 2007 at 5:09pm.

1)Write an equation for the parabola with focus (1,3)and vertex(0,3)
answer= x= 1/4(y-3)^2

2)Write an equation for a circle if the endpoints of a diameter are at (1,1)and(1,-9)
answer= (x-1)^2+(y+4)^2=25

3)Which is the equation of a circle with center (0,1)and radius 2 units?
answer= x^2+y^2-2y=4

1) correct for the vertex but I don't know about the focus

2) wrong ( I again plugged your equation into my calculator and I didn't get the diameter as what was given)

3) correct

what do you mean?


for number 2
A.(x-1)^2+(y+4)^2=5
C.(x+1)^2+(y-4)^2=5
D.(x+1)^2+(y-4)^2=25
is it A?

number 1
A.y=(x-4)^2-15
B.y=4(x-1)^2+5
C.y=4(x-1)^2-3

Checking again..2 is fine
I was looking on the wrong side of the circle for the diameter points.

Answer this Question

First Name:
School Subject:
Answer:

Related Questions

algebra - 1)What is the distance between the museum and sailing club.I cant post...
algebra - A few more question Id like for someone to check please. 1) what are ...
Algebra - Can someone tell me if I am right? I need to find the equation of a ...
algebra problem - I need to find the equation of a parabola. I am not sure if ...
algebra - 1)Write an equation for an ellipse if the endpoints of the major axis ...
Algebra II - Write an equation for the parabola with focus (1,3) and vertex (0,3...
algebra - 6. Find the equation of each parabola described below. a) parabola ...
algebra - Write an equation for a parabola with vertex at (3, -6) and focus at...
algebra - Write the equation for a parabola with vertex ( -2, 3) and focus ( -2...
algebra 2 - Write the equation for a parabola with vertex (-2 , 3) and focus ( -...

Search
Members