It'll go positive but for every number or goes half way
It is the one in the bottom left corner. This is because you start with the number on the right (7) and plot it on the y axis (the vertical line in the middle). Then you take the slope (3x) and view it as 3/1. Start at 7 and go up 3 and then over one. Continue this until you have a line.
By using <span>Euler’s formula which state that:
e∧(iΘ) = cos Θ + i sin Θ
So, z₁ = 2 ( cos π/6 + i sin </span>π/6 ) = 2 e∧(i <span>π/6)
And </span><span>z₂ = 3 ( cos π/4 + i sin π/4 ) = 3 e∧(i <span>π/4)
Then </span></span>z₁ * z₂ = 2 e∧(i π/6) * <span>3 e∧(i π/4) = 6 </span><span>e∧[i (</span><span>π/6 + π/4)]
= </span><span>6 e∧(i 5<span>π/12)
= 6</span></span><span> ( cos 5π/12 + i sin 5π/12 )</span>
3.1 x 10^10
Yeah, that's it.
It is a gain because she sold it for more than she bought it for