Posted by **Unknown** on Wednesday, August 29, 2012 at 3:05pm.

a graph with the points (0,-3) (2,-4) (-2,-4)

What would be the domain, range x-intercepts y-intercepts and funtional value..

Help Please?..

- Algebra2 - incomplete -
**Steve**, Wednesday, August 29, 2012 at 4:03pm
just given three points, there's no way to tell anything in general about the function. All we know is

the domain includes {-2,0,2}

the range includes {-4,-3}

y-intercept at y = -3

no x-intercept given

there are many functions which contain these three points:

y = -|x/2| - 3

y = 1/2 cos(π/4 x) - 3.5

y = cos(π/2 x) - 3

y = -x^2/4 - 3

y = 1/4 x^4 - x^2 - 3

and so on

- Algebra2 -
**Unknown**, Wednesday, August 29, 2012 at 4:55pm
Thanks?..

Same Type of question...

cAn you tell me if these are maybe right?..

1. points of (2,2) (-1,4) (2,6)

Domain:(-4,2,6)

range:(2,2)

xIntercept: none

y-Intercept: none

functional value: x^2+2

- Algebra2 -
**Steve**, Wednesday, August 29, 2012 at 5:25pm
domain: {-1,2}

range: {2,4,6}

domain is the x-coordinate (1st value)

range is the y-coordinate (2nd value)

f(x) is certainly not x^2 + 2

(-1)^2 + 2 = 3, not 4

(2,6) fits, but (2,2) does not.

In fact, since (2,2) and (2,6) contain the same x-value, but different y-values, these pairs are not even a function.

## Answer this Question

## Related Questions

- algebra - Can someone check my answers please and if Im wrong please explain. 1...
- algebra - Can someone check my answers on exploring conic sections? 1. Graph x2...
- Calculus - Sketch the graph of f(x)=x^2/x-2. Identify the domain, x-intercepts, ...
- Algebra - What would three points on a graph be, graphing the x and y intercepts...
- Calculus - Given the function f(x)= x√(x+3), Indicate the domain of f(x...
- calculus--please help!! - given the following piecewise function F(x)={x+11 for...
- math - A function f(x) has domain [0,25), range (-∞,5], and intercepts (2,...
- algebra - Sketch a graph of y=1/2int(x-2)+1. State the domain range and ...
- math - . Given the following function, f(x)=-x^2 -8x find: (a) vertex, (b) axis...
- acollege algebra - If f(x)=2(x-3)^2-5 find the vertex, the x intercepts the y ...