Question

(a) If A is a point on y-axis whose ordinate is 5 and B is a point (-3, 1). Calculate the distance between AB.

Answer 1

Answer:

5 units

Step-by-step explanation:

Given : A is a point on the y-axis whose ordinate is 5 and B is the point (-3,1).

To Find:  Calculate the length of AB.

Solution:

Since A is a point on the y-axis whose ordinate is 5.

Since A lies on y axis So, x -coordinate of Point A is 0.

Y -coordinate =  ordinate = 5.

So, Point A =  

Point B =  

So, to find the distance between Point A and point B we will use distance formula :

Substitute the given values .

Hence the length of AB is 5 units