Answer:
Explanation:
The domain on all x-squared parabolas is all real numbers.
The range of an x-squared parabola is always found at the y coordinate of its vertex, and then is determined by whether it opens upwards or downwards. Our vertex has a y coordinate of -1 and opens downwards, so the range is all real numbers less than or equal to -1.
There are no x-intercepts (aka places on the graph that go through the x-axis), but the y-intercept is also the vertex, which is (0, -1).
Because this is an upside down parabola, it has a max point, again at the vertex. It has no min point.
It increases from negative infinity to its max point and is notated as follows: (-∞, 0]
and decreases from its max point to negative infinity: [0, -∞)