College Algebra
posted by Jennifer .
Suppose that the Quadratic equation had two Xintercepts. How could you use the intercepts to find the vertex?

College Algebra 
Reiny
The x value of the vertex would be midway between the two xintercepts,
so find the x of the vertex then sub into the equation to find the y value.
Respond to this Question
Similar Questions

xintercepts
0=2x^2+5x3 determine the xintercepts This is a quadratic equation. Use the quadratic equation, or... Factor it. (2x xxx)(x +xxxx)=0 
Algebra
I'm trying this again, I'd like the quadratic form, so i can then work the intercepts myself. SO: what's the quadratic form of 1/4(x+3)^24 I need it to find the intercepts of the parabola it describes. Check: I think the parabola … 
Algebra
Find the vertex of the functions given below. 1. y=(x4)(x+2) 2. y=2x^24x+1 The midpoint of the xintercepts of a parabola has the same x value as the vertex. the xintercepts are obviously x=4 and x=2 so the x value of the vertex … 
algebra II
Can you please help me with the these problems. 8.Write an equation in standard form of the parabola that has the same shape as the graph of f(x) = 11x^2, but which has its vertex at (2, 9). 10. Use the vertex and intercepts to sketch … 
Algebra Quadratic Equations
When a quadratic equation has one solution, there will be one xintercept; when there are two solutions, there will be two xintercepts and when the equation has no solution, the graph will have no xintercepts",is there another way … 
Algebra
I have to find the standard form of a quadratic function with the vertex of 1,4 and x intercepts of 3,0 and 1,0. What do I do when I have two x intercepts like this? 
Algebra
Did I do this right? Find the vertex, the x intercepts and y intercepts. f(x)=(x2)^24 Vertex: 2,4 X intercepts: 0,0 4,0 Y intercepts: I didn't know how to get these. Could you explain? 
algebra
Suppose that a quadratic equation had two xintercepts. How could you use the intercepts to find the vertex? 
Math
If a graph of a quadratic function can have 0, 1 or 2 xintercepts. How can you predict the number of xintercepts without drawing the graph or (completely) solving the related equation? 
quadratic functions
The graph of a quadratic function can have 0, 1 or 2 xintercepts. How can you predict the number of xintercepts without drawing the graph or (completely) solving the related equation?