Q. 9 - Precalculus Enhanced with Graphing Utilities

Question

True or False :

 The y-coordinate of a point at which the

graph crosses or touches the x-axis is an x-intercept.

Step-by-Step Solution

Answer

The given statement is False .

Step 1: Given information:

The given statement is: 

The y-coordinate of a point at which the

graph crosses or touches the x-axis is an x-intercept. 

Step 2:

Example: $y=x+2$

Clearly, from the graph, we get, the y co-ordinate is zero for the x-intercept.

$\therefore$ The " x co-ordinate" of a point at which the graph crosses or touches the x-axis  is an x-intercept.