Tutors Answer Your Questions about Quadratic-relations-and-conic-sections (FREE)
Question 48406: the population of a city is decreasing at the steady rate of 8% per year. the population is curently 22,000. how long will it take the population to drop to 14,500?
please help me figure this one out
thanks for your time :)
Click here to see answer by Nate(3500)  |
Question 49056: I am not sure how to go about changing the following problem into standard form. I tried to do completing the square, but I'm not sure how to use it in this situation or when there is a coefficient other than 1 in front of x^2 and y^2. I would greatly appreciate help on how to solve the following problem. Thanks!
Change the equation to standard form and name the figure.
3x^2-2y^2-12x-20y-44=0
Click here to see answer by Nate(3500) |
Question 49056: I am not sure how to go about changing the following problem into standard form. I tried to do completing the square, but I'm not sure how to use it in this situation or when there is a coefficient other than 1 in front of x^2 and y^2. I would greatly appreciate help on how to solve the following problem. Thanks!
Change the equation to standard form and name the figure.
3x^2-2y^2-12x-20y-44=0
Click here to see answer by xerxes0212(2) |
Question 52351: Find an equation for a Parabola with vertex (1,0) containing the point(4,18)
If lines 2x-y=17 and 5x+y=11 are graphed what is their intersection point?
If f(x)=x2-x, what is f(-1)
Find an equation that represents a Parabola on the xy-plane with vertex(-3,2)opening upwards?
Click here to see answer by AnlytcPhil(1806)  |
Question 52351: Find an equation for a Parabola with vertex (1,0) containing the point(4,18)
If lines 2x-y=17 and 5x+y=11 are graphed what is their intersection point?
If f(x)=x2-x, what is f(-1)
Find an equation that represents a Parabola on the xy-plane with vertex(-3,2)opening upwards?
Click here to see answer by funmath(2933) |
Question 55971: I'm in Chapter 6 section 6. Its about Alalyzing Graphs of Quadratic Functions. the problem looks like this: y=5x(squared) -6
my question is when you write the quadratic funcionin vertex form, do you factor out a 5 and just have your x*x remaining and then subtract 6, or do you have x*x squared?
Click here to see answer by funmath(2933) |
Question 55980: Hello, I am having a lot of trouble in algebra II right now with graphing parabolas. Could you do me a favor, and write out the steps in graphing a parabola. For example: Step 1: (blah blah blah)
Step 2: (...)
Maybe an example problem would be: x(squared)=8y
Thanks again.
Click here to see answer by Lacey020991(49) |
Question 56426: Hope you can help me
"What degenerate form or forms of the parabola cannot be obtained from the intersection of a plane and a double napped cone? Describe how to obtain this (or these). Use a diagram to support your answer."
Thanks in advanced
Click here to see answer by stanbon(75887) |
Question 57244: 1. A ball follows a flight given by y = 20x - x^2 + 6 where x represents the horizontal distance traveled in feet and y represents the height of the ball in feet. What will be the maximum height of this ball if it is thrown?
2. If x=2, x=-3 and x=0 are zeros of a polynomial, what is a possible equation for this polynomial?
3. What is the vertex of the graph given by
y=2x^2 - 4x + 3? Would the graph be a shift of y=2x^2?
4. Write the equation of the parabola given by y=2x^2-4x+3 in "standard" form.
Thank you very much!!
Click here to see answer by ankor@dixie-net.com(22740)  |
Question 58609: I needed to find the vertex of this parabola: y = -x^2 - 3x - 2
so what I did was:
0 = -x^2 - 3x - 2
x = -1, x = -2
Two x-intercepts: (-1, 0) and (-2, 0)
y = -0^2 - 3(0) - 2 = -2
One y-intercept: (0, -2)
x = 1/2(-1 - 2) = -3/2
y = -3/2
y = -3/2 - 2)-3/2) - 2 = 1.5
Vertex is -3/2, 1.5
Is this correct?
Click here to see answer by funmath(2933) |
Question 60403: Find the vertex and intercepts for each parabola. Sketch the graph
44. g(x) = x^2 + x – 6
i do not know if this question goes here or not because i do not know how to solve it or what to do. thanks for any help
Click here to see answer by funmath(2933) |
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