The ordinate of a point A on the y-axis is 5 and B has coordinate (-3,1),then find the length of AB

The ordinate of a point A on the y-axis is 5 and B has coordinate (-3,

1.	The ordinate of a point A on the y-axis is 5 and B has coordinate (-3,1),then find the length of AB
Answer» Take x-coordinate as 0 therefore the coordinates of A are (0,5).Now use distance formula.The answer is 5 units