Question

Write the equation of the line that is parallel to y-axis and passing through the point (3,-5)

Answer 1

`x=3`

Explanation:

Because this line is parallel to the y-axis, it is a vertical line. This is a special case where the formatting of its equation is different:

`x=d` where d is the x-intercept, or the value of x when the line crosses the x-axis

We're given that the line passes through the point (3,-5). Because this is a vertical line, the x-coordinates of the points it passes through will always stay the same. Therefore, the x-intercept (d) is 3.

`x=3`

I hope this helps!