X + 4 = 0
Explanation
The equation of a line parallel to y axis is
x = k where k is constant. …..(1)
It is given that the line parallel to y axis passes through the point (-4,-5).
Therefore (-4,-5) will satisfy equation (1)
Hence , -4 = k
Equation (1) becomes
x = -4
=> x + 4 = 0
Hope it helps.
