Understanding the x-intercept and how to find it in a math equation

x-intercept

The x-intercept is a point on a graph where the graph intersects or crosses the x-axis

The x-intercept is a point on a graph where the graph intersects or crosses the x-axis. It is the value of x when y is equal to zero. In other words, it is the value of x at which the function or equation equals zero.

To find the x-intercept, you need to set y equal to zero and solve for x.

Here’s an example:

Let’s say we have the equation y = 2x – 4.

To find the x-intercept, we set y equal to zero:

0 = 2x – 4

Next, we solve for x by isolating the variable:

2x = 4
x = 4/2
x = 2

Therefore, the x-intercept of the equation y = 2x – 4 is x = 2.

Graphically, the x-intercept is the point where the graph of the equation intersects the x-axis. In this case, it is the point (2, 0) on the graph.

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