# What is the sum represented by as points on the complex plane when we add the two complex numbers a + bi and c + di?

$a + b i$ is represented by the point $\left(a , b\right)$
$c + \mathrm{di}$ is represented by the point $\left(c , d\right)$
$\left(a + b i\right) + \left(c + \mathrm{di}\right) = \left(a + c\right) + \left(b + d\right) i$
is represented by the point $\left(a + b , c + d\right)$.