Online X-Coordinate Tutoring - X-Coordinate Tutors

Online X-Coordinate Tutoring - X-Coordinate Tutors A 2-dimension coordinate plane consists of two axis perpendicular to each other known as the X-axis and the Y-axis. The horizontal axis is known as the X-axis and the vertical axis is known as the Y-axis and they intersect at the origin. A point in the coordinate plane is represented as (x, y) where x is called as the x-coordinate and y is called as the y-coordinate. The x-coordinate represents the distance on the X-axis of the given point and similarly the y-coordinate represents the distance on the Y-axis of the given point from the origin. Example 1: Given the equation of a line y = 2x 4. Find the x-coordinate of the point where the line crosses the X-axis. Given: y= 2x 4 In order to find the point where the line crosses the X-axis, we can plug-in y = 0 because the value of the y-coordinate on the X-axis is 0. This implies: y = 2x 4 ==0= 2x 4. This gives: 2x = 4 ==x= 4/2 = 2. Therefore the point where the line crosses the x-axis is (2, 0) The x-coordinate of the point is 2. Example 2: Given the equation of a line y = x 5. Find the x-coordinate of the point where the line crosses the X-axis. Given: y= x - 5 In order to find the point where the line crosses the X-axis, we can plug-in y = 0 because the value of the y-coordinate on the X-axis is 0. This implies: y = x 5 == 0= x - 5 This gives: x = 5. Therefore the point where the line crosses the x-axis is (5, 0) The x-coordinate of the point is 5.