## Which graph does not represent Y is a function of x?

# Which graph does not represent Y is a function of x?

## Which graph does not represent Y is a function of x?

The vertical line test is a test which uses a vertical line to make sure the graph does not have any mutual y values for distinct x values. Also, the equation for the line is x=3 which doesn’t represent y as a function of x.

### How do you tell if Y is a function of x on a graph?

Vertical line test: If a vertical line can be drawn to touch the graph of a function in more than one place, then is NOT a function of . If it is not possible to draw a vertical line to touch the graph of a function in more than one place, then y is a function of x.

**How do I know if Y is a function of x?**

The phrase “y is a function of x” means that the value of y depends upon the value of x, so:

- y can be written in terms of x (e.g. y = 3x ).
- If f(x) = 3x, and y is a function of x (i.e. y = f(x) ), then the value of y when x is 4 is f(4), which is found by replacing x”s by 4″s .

**What graph is not a function?**

The Vertical Line Test : A curve in the xy-plane is a function if and only if no vertical line intersects the curve more than once. This red graph is NOT a function as it fails the Vertical Line Test in blue. We can draw a vertical line and it hits more than one point on our function.

## What kind of function is 1 x 2?

Linear functions

Linear functions. An equation is linear if it contains no powers of x besides x1 = x or x0 = 1. For example, y = 2x and y = 2 are linear equations, while y = x2 and y = 1/x are non-linear. Linear equations are called linear because their graphs form straight lines.

### How do you know that a graph represents a function?

Use the vertical line test to determine whether or not a graph represents a function. If a vertical line is moved across the graph and, at any time, touches the graph at only one point, then the graph is a function. If the vertical line touches the graph at more than one point, then the graph is not a function.

**Which graph represents the function f(x)?**

Graphing square-root functions. A square-root graph is related to a quadratic graph. The quadratic graph is f(x) = x 2, whereas the square-root graph is g(x) = x 1/2.

**What kind of graph represents a function?**

A straight graph visually depicts a mathematical function. The x- and y-coordinates of the graph’s points represent two sets of quantities and the graph plots the relationship between the two. The equation of the line is the algebraic function that derives the y-values from the x-coordinates.

## Which rule defines the function in the graph?

Functions are usually represented by a function rule where you express the dependent variable, y, in terms of the independent variable, x. You can represent your function by making it into a graph. The easiest way to make a graph is to begin by making a table containing inputs and their corresponding…