Question

Write the equation of a line
Slope m= unidentified
X-intercept = 5

Answer 1

x = 5

Explanation:

You want the equation of a line with undefined slope and an x-intercept of 5.

Vertical line

Slope is the ratio of "rise" to "run" for a line. If the line is vertical, the "run" is zero, making the denominator of the ratio is zero. Division by zero gives an "undefined" result.

If the slope of a line is "undefined", it is a vertical line. It has the same x-value everywhere. Its equation is ...

x = c . . . . . for some constant

Application

Here, the vertical line crosses the x-axis at x=5. That is the equation of the line:

x = 5