Quadractic Functions
posted by Carmen .
Please check my answers.
Find the xintercepts (if any) for the graph of the quadratic function.
1.f(x) = (x + 2)2  4
I got (0,0) and (4,0)
Find the yintercept for the graph of the quadratic function.
5.y + 9 = (x + 3)2
I got (0,0)
Find the domain and range of the quadratic function whose graph is described.
7.The vertex is (1, 15) and the graph opens up.
I got domain: (infinity, pos.infinity)
range: [15, pos. infinity)

correct
Respond to this Question
Similar Questions

Quadratic Functions
Please explain to me how to do the following problems, I don't understand them. Thanks! Find the xintercepts (if any) for the graph of the quadratic function. 1.f(x) = (x + 2)2  4 Find the yintercept for the graph of the quadratic … 
College Algebra
1.Answer the following for the given quadratic function. f(x) = 2x^2  8x  13 (a) does the graph of f open up or down? 
College Algebra
1.The graph of y =  1/2 x  5  3 can be obtained from the graph of y = x by which transformations? 
mathplease help,need quickly
find the slant asymptote of the graphof the rational function. 1.f(x)=x^2x2/x7 y=? 
math pre calculus
find the following for the function f(x)=(x+5)^2(x2)^2 a.find the x and y intercepts, b.find the power function that the graph ressembles for large values of x c.determine the maximum number of turning points on the graph of f d.determine … 
MATH
Find two quadratic functions whose graph have given xintercepts. Find one function whose graph opens upward and another whose graph opens downward. (4,0) (0,0) 
Math
Find two quadratic functions whose graph have the given xintercepts. Find one function whose graph opens upward and another whose graph open downdward. (5/2,0),(2,0) 
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? 
math
For positive a, b, the potential energy, U, of a particle is given by U = b (a^2 over x^2  a over x) for x is greater than 0 a) find the xintercept b) find the asymptotes c)compute the local minimum d) sketch the graph I don't know …