The domain for all parabola is always all real numbers.
Answer:
Make a table with values of x and y using the equation y + 3 = -1/4(x - 3) :
x y
0 -2.25
3 -3
5 -3.5
-1 -2
-9 0
Now, graph these and draw a line through the points:
Answer:
6
Step-by-step explanation:
Use the slope formula:

Picking x = 2 and x = 4 as my two points (since the interval is 2 ≤ x ≤ 4), we get:

So, the BEST estimate of the average rate of change for the function given in the table is 6.
A.60 percent or 9 out of 15 B. 40 percent or 6 out of 15
A function has the property that each element of the domain maps to only one element. For example, if there's ever the case where a relation includes point (1,2) and (1,3) then that relation is not a function. So for each case write down all the points as described. If one point in the domain ever maps to two different points, then it's not a function