Answer:
x = 4 OR 1x + 0y = 4
Step-by-step explanation:
so if it is a line parallel to the y axis, it is a vertical line. A vertical line has an undefined slope, so it cant be written in y = mx + b form.
ur equation would be : x = 4....because no matter what y is, x will always be 4.
but if u need it in standard form Ax + By = C it is :
1x + 0y = 4
