The midpoint of line segment AB is (-2,1). If the coordinates of B are (0,2) what are the coordinates of A?

The required coordinate of A will be at (-4, 0)

When a point bisects a line, it cuts the line into two equal parts and the point on that line is known as its midpoint. The expression for calculating the midpoint of a line is expressed as;

where:

From the question, we are given the following coordinate points

Get x₂;

Get y₂;

Hence the coordinate of A will be (-4, 0)

Learn more about the midpoint here:

step-by-step explanation:

you can add the two numbers and divide the result by 2. or you can find the gap between the two numbers and add half of this to the smaller number.