Question

The figure below shows a graph of the function of f(x) in the coordinate plane The line begins 5 on the y axis goes up to 9 then downward to 1.25 on xaxis find the vertical axis of symmetry and y intercept

Answer 1

It does not show that it crosses the y axis

Answer 2

To determine the vertical axis of symmetry and the y-intercept of the function \( f(x) \) based on the description of the graph provided, we proceed as follows:

1. **Y-Intercept**: The y-intercept is the point where the graph crosses the y-axis. From your description, you mentioned that the graph starts at \(5\) on the y-axis. Thus, the y-intercept is \( (0, 5) \).

2. **Vertical Axis of Symmetry**: The vertical axis of symmetry in a function is a vertical line that divides the graph into two mirror-image halves. Since the graph goes up to \(9\) and then descends to \(1.25\), a common method to find the axis of symmetry is to consider the midpoint of the high and low points of the function.

- Let's say the two extreme points (the peak at \(9\) and the local minimum in the downward path) lie on the graph around a certain x-coordinate (which needs more specifics from your description, but we can still analyze it qualitatively).
- If, for example, the peak is at \(x = h\) and the function is symmetric in nature around that point, it might imply that there exists an axis of symmetry vertically at \(x = h\).

Without the specific x-coordinates of where the y-value is \(5\) at the beginning and where it intersects the x-axis at \(1.25\), I cannot provide an exact value for the vertical axis of symmetry. However, if there's additional information or if we assume the function forms a parabolic shape, the axis of symmetry would occur at the vertical line passing through the vertex.

To summarize:
- **Y-Intercept**: \( (0, 5) \)
- **Vertical Axis of Symmetry**: Requires more specific information about the shape and x-values of the extremes to determine accurately. If the graph is symmetric around a certain point, that would provide the vertical line equation \( x = h \) for some \( h \) based on the graph's peak.

Answer 3

Thank you for the clarification. If the graph illustrates that the function does not cross the y-axis, it implies that the value of the function does not exist (or is not defined) for \( x = 0 \).

Then, it seems that the function starts at y = 5 and reaches up to y = 9 but does not cross the y-axis, which means the function does not have a y-intercept.

### Key Points:
1. **Y-Intercept**: Since the function does not cross the y-axis, we conclude that there is **no y-intercept**.

2. **Vertical Axis of Symmetry**:
- The vertical axis of symmetry is typically determined by the structure of the graph. If the graph has maximum value at y = 9 and then moves downward symmetrically, we could analyze the x-coordinates of these points to find an axis of symmetry.
- If the graph is symmetric, the axis of symmetry would be a vertical line located at a specific x-value (the x-coordinate where the maximum occurs).
- Without specific coordinates or more information on the graph's features, we can't definitively determine the axis of symmetry.

To sum it up:
- **Y-Intercept**: There is no y-intercept since the graph does not cross the y-axis.
- **Vertical Axis of Symmetry**: Cannot be determined without additional information about the graph's x-coordinates.

If you have more details or specific coordinates from the graph, please provide them for a more accurate analysis.