Tutors Answer Your Questions about Quadratic-relations-and-conic-sections (FREE)
Question 110007: Ok. so this one is a graph of a positive, even parabola which means it opens up. the vertex is (-1,-2) and one of the points on the parabola is (0,-1). It's telling me to write a quadratic function in vertex form for the parabola. what is vertex form and how do i plug in the coordinates to find it? HELP PLEASE! :]
Click here to see answer by scott8148(6628)   |
Question 112971: I am in algebra 2 and we are learning about "interperetting graphs. Equations like, "If f(x)=Xsquared the the graph of each equatrion below is a parabola. Describe the location of the parabola relative to the graph of f(x)=xsquared.... y=f(x)-3 or y=f(x-2)" im so lost, we have a sustitute because our teacher is on meternity leave on he knows nothing about anything he is teaching. Please help!
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Question 112893: 1. find the vertices and foci of the hyperbola
x^2-y^2=1
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144 9
2.write an equation for the hyperbola. its center is (0,0)
foci:(0,-9),(0,9) vertices:(0,-7),(0,7)
if you can help me i would appriciate it thak you
Click here to see answer by MathLover1(20850)  |
Question 113780: Hi, I am in Intermediate Algebra at York University and I'm having trouble with a particular question. In Conic Sections/Quadradtic Inequalities and Systems of Inequalities, the objective is to graph the solution set of a onlinear system of Inequalties. The question is:
1)
y > x^2 - 3
y < x + 3
x <= 0
Thank you for your future help
Click here to see answer by stanbon(75887) |
Question 113782: Hi, I am in Intermediate Algebra at York University and I'm having trouble with a particular question. In Conic Sections/Quadradtic Inequalities and Systems of Inequalities, the objective is to graph the solution set of a onlinear system of Inequalties. The question is:
1)
X^2 + y^2 < 3
x > y^2 - 1
y => 0
Click here to see answer by stanbon(75887) |
Question 113831: Find an equation of the parabola that has vertex (1,2) and focus (-1,2).
I think that you either use  or  , but I dont know which one to use or how you can determine which to use. I would really appreciate it if someone could help me out. Thanks in advanced:)
Click here to see answer by scott8148(6628) |
Question 114010: Find an equation of the parabola that has vertex (1,2) and focus (-1,2).
I dont know how to solve this problem, if anybody could help me out or give me some examples or refer me to other web pages where I can find examples I would really appreciate it. Thank you.
Click here to see answer by scott8148(6628) |
Question 114544: i need help with the following problem.
textbook:0-13-187027-0
chapter 7.2 question 82
"find the equation of a hyperbola whose asymptotes are perpendicular."
that's it. i've tried to figure it out but have been unable. any help would be greatly appreciated.
thanks
Click here to see answer by jim_thompson5910(35256) |
Question 115162: Consider the function fx = x^ +6x - 2
1- Find h, the x-coordinate of the vertex of this parabola.
2 - Substitute the two whole number values immediately to the left and right of h into the function to find the corresponding y. Fill in the table below. Make sure your x-values are in increasing order in your table.
x y
h=__
I do not comprehend the equation/function/graph thing......can someone give me a look at how to do problems like this? Thanks - I have 3 more like it to do this week.
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Question 115813: I couldn't find a formula for this problem. I not sure how to so this. Can anyone help?
Find an eqs for the ellipse that has its center at the origin and satisfies the given conditions.
Vertical Major axis of length 7, minor axis of length 6
Thanks
Click here to see answer by stanbon(75887) |
Question 116023: How do I identify this equation as a circle and to specify the center and the radius?
I worked on the equation and made it into the (x-h)^2+(y-k)^2=r form:
but I don't understand how the radius can be zero.
Click here to see answer by stanbon(75887) |
Question 116335: A record label uses the following function to model the sales of a new release. a(t)=-90t squared + 8100t. The number of albums sold as a funtion of time, t, in days. On which day were the most albums sold? what is the maxium number of albums sold on that day.
Click here to see answer by josmiceli(19441)  |
Question 117277: I need some real help here. I have researched to find better explnations as to what the semi major axis is so I can do the math but I can't find it. I know the final answer should be between 0 and 1. This is the problem...
A satellite has an elliptical orbit around the earth with one focus at the earth's center, E. As indicated, the Earth's radius is 4000 miles, the highest point that the satellite is from the surface of the earth is 800 miles and the lowest is 200 miles. find the eccentricity of the satellites orbit.
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Question 117693: I can go back and graph what i see out of problems but not write the equation correctly. how do i write an equation for a hyperbola in standard form with vertices (0,8) (0,-8) and asymptotes y=positive or negative 4x?
Click here to see answer by stanbon(75887) |
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