Find the equation of the plane which passes through the point (3, 4, –1) and is parallel to the plane 2x – 3y + 5z + 7 = 0. Also, find the distance between the two planes.

Since the plane is parallel to 2x – 3y + 5z + 7 = 0, it must be of the form:


2x – 3y + 5z + θ = 0


According to question,


The plane passes through (3, 4, –1)


2(3) – 3(4) +5(–1) + θ = 0


θ = 11


So, the equation of the plane is as follows:


2x – 3y + 5z + 11 = 0


Distance of the plane 2x – 3y + 5z + 7 = 0 from (3, 4, –1):


We know, the distance of point (x1,y1,z1) from the plane


is given by:



Putting the necessary values,




the distance of the plane 2x – 3y + 5z + 7 = 0 from (3, 4, –1) is


units


2