The rule for 270 degrees counterclockwise is
![(x,y)\rightarrow(y,-x)](https://img.qammunity.org/2023/formulas/mathematics/college/p103kdtjemgzzaskeyeogvxih246rhhmbi.png)
In words, this rule means to transform the point, we just have to move or change the position of the coordinates and put the x-coordinate with opposite sign.
We use this rule to find the answer.
![(5,8)\rightarrow(8,-5)](https://img.qammunity.org/2023/formulas/mathematics/college/uld9x7z3z6hsoj4h0gl96ovtzlhsqfvysj.png)
Therefore, the transformed point is (8,-5).