Domain and range of a function using a graph.?

Question

How do you find the domain and range of a function using a graph?
The graph is not a hyperbola nor is it a straight line, it's more of a combination of straight lines(if that even matter haha) After I find the domain and range it asks 'then enter the corresponding function value in each answer space below:
h(-2)
h(-1)
etc...

Answer 1

Domain: the X values
Range: the Y values

if you have a function y = x, the graph is a line. The domain and range are both all real numbers.

If you have a function y = 1, a straight horizontal line, The domain is all real numbers and the range is 1.

If the graph has multiple lines, the area that has no x or y values is out of either the domain or range respectively.

If you look at the graph you should be able to tell where the max / min domain and range values are.

for the second part: If you have h(-2), look at the x value -2, what is the corresponding y value?

Do the same for h(-1)

Answer 2

In mathematics, the range of a function is the set of all "output" values produced by that function.

So the domain should be all your x values on the graph. The range should be all your y-values on the graph.

The function is the formula that generates these outputs (y vallues), given your inputs (x-values).

Answer 3

enable's commence with the easy section. Is there any fee of x for which there is not any y? No. each fee of x is allowed., so the area is all actual numbers. Is there any fee of y which could not be generated through x? certain. |x - 4| is continuously going to be powerful. It can not be < 0. hence |x - 4| + 2 is going to be => 2 So y is the set of all actual numbers such that y => 2, or [2,inf). i'm not particular what they advise through "use adjustments to graph." The function could be fairly ordinary to entice. listed decrease than are countless the criteria: (0,6) (a million,5) (2,4) (3,3) (4,2) <-minimum (5,3) (6,4)