What is how to find x intercept?

Here's how to find the x-intercept of a function or graph:

The <a href="https://www.wikiwhat.page/kavramlar/x-intercept">x-intercept</a> is the point where a graph crosses the x-axis. At this point, the y-value is always zero.

Methods to find the x-intercept:

1. From an Equation:

   • Set y = 0: Replace 'y' (or f(x)) in the equation with 0.
   • Solve for x: Solve the resulting equation for the variable 'x'. The solution(s) will be the x-coordinate(s) of the x-intercept(s).
   • Write as a Coordinate: Express the x-intercept as a coordinate point in the form (x, 0).

2. From a Graph:

   • Visually Inspect: Look at the graph and identify the point(s) where the line or curve intersects the x-axis.
   • Read the x-coordinate: The x-coordinate of the intersection point is the x-intercept. The y-coordinate will be 0.

Example:

Let's say you have the equation: y = 2x + 4

• Set y = 0: 0 = 2x + 4
• Solve for x:
  • Subtract 4 from both sides: -4 = 2x
  • Divide both sides by 2: x = -2
• The x-intercept is (-2, 0).