00:01
This problem says use the drop -down menus to identify the values of the parabola, and we're asked to find the vertex, the domain, and the range.
00:09
And even though we can't see what the drop -down menus are, we can identify these values in a couple different forms, especially for the domain and range.
00:15
The vertex though, we only have one answer, and the vertex is the point where we see symmetrically our parabolas opening up either up or down from.
00:24
And the point on our y -axis of 0 ,4 is where we can see that our parabola is opening down from the left and right, and we see symmetric relationship there.
00:34
So the vertex is 0 ,4 or point 0 ,4.
00:38
For the domain, when we are asked to find domain, that means we want to know all the possible x values or input values for the function.
00:45
And when we see these two arrows at the bottom of our graph, those arrows are not only going to continue to go down, but they're also going to continue to trend to the left as well as to the right.
00:55
And since we don't see any break in our function as far as an open point or anything like that, that means we can assume that all x values are going to be used.
01:03
So in interval notation, that would be negative infinity to infinity.
01:07
You could also use inequality notation, which would be negative infinity less than x less than positive infinity...