A y-axis is the line on a graph that is drawn from bottom to top. This axis is parallel to which coordinates are measured. The numbers placed on the y-axis are called y-coordinates. Ordered pairs are written in parentheses, with the x-coordinate written first, followed by the y-coordinate: (x, y).
Contents
Which side is the y-axis on a graph?
left
Scientists like to say that the “independent” variable goes on the x-axis (the bottom, horizontal one) and the “dependent” variable goes on the y-axis (the left side, vertical one).
Is y-axis up or down?
Reminder: the x-axis really runs left and right, and the y-axis runs up and down.
What is the Y-coordinate?
Definition of y-coordinate
: a coordinate whose value is determined by measuring parallel to a y-axis specifically : ordinate.
How do you graph XY?
Plotting Points on a Graph
Cartesian points are written as xy pairs in parentheses, like so: (x, y). To graph a point, first locate its position on the x-axis, then find its location on the y-axis, and finally plot where these meet.
What is y-axis called?
The vertical axis is usually called the y-axis.
How do you find the y coordinate of a vertex?
Lesson Summary
- Get the equation in the form y = ax2 + bx + c.
- Calculate -b / 2a. This is the x-coordinate of the vertex.
- To find the y-coordinate of the vertex, simply plug the value of -b / 2a into the equation for x and solve for y. This is the y-coordinate of the vertex.
What does the Y-axis represent?
The y-axis is like a vertical ruler. It shows you where an object on a Cartesian plane, a two-dimensional mathematical graph, is in the y (vertical) direction. It is also the starting, or zero, point for measuring how far a point is to the right or left (horizontally) on a graph.
How do you find XY coordinates?
To find out the coordinates of a point in the coordinate system you do the opposite. Begin at the point and follow a vertical line either up or down to the x-axis. There is your x-coordinate. And then do the same but following a horizontal line to find the y-coordinate.
What does the y-axis represent on a bar graph?
In most bar graphs, like the one above, the y-axis runs vertically (us and down). Sometimes bar graphs are made so that the bars are sideways like in the graph to the left. Then the y-axis is horizontal (flat). Typically, the y-axis has numbers for the amount of stuff being measured.
What is the Y in vertex form?
However, if you need to graph a quadratic function, or parabola, the process is streamlined when the equation is in vertex form. The vertex form of a quadratic equation is y = m(x-h)^2 + k with m representing the slope of the line and h and k as any point on the line. Standard Form To Vertex Form.
Is the y-intercept the vertex?
In either case, the vertex is a turning point on the graph. The graph is also symmetric with a vertical line drawn through the vertex, called the axis of symmetry. The y -intercept is the point at which the parabola crosses the y -axis. The x -intercepts are the points at which the parabola crosses the x -axis.
What does the y value represent on a graph?
The y value of a point where a vertical line intersects a graph represents an output for that input x value.
Which type of data is presented on the y-axis?
The independent variable belongs on the x-axis (horizontal line) of the graph and the dependent variable belongs on the y-axis (vertical line).
What is horizontal axis in bar graph?
A bar graph (also known as a bar chart or bar diagram) is a visual tool that uses bars to compare data among categories.On a vertical bar graph, as shown above, the horizontal axis (or x-axis) shows the data categories. In this example, they are years. The vertical axis (or y-axis) is the scale.
What is legend on a graph?
The legend of a graph reflects the data displayed in the graph’s Y-axis, also called the graph series. This is the data that comes from the columns of the corresponding grid report, and usually represents metrics. A graph legend generally appears as a box to the right or left of your graph.