$g(y) = y^2 - 3y$\nevaluate $g(6)$

Explanation:

Step1: Substitute $y=6$ into $g(y)$

$g(6) = 6^2 - 3(6)$

Step2: Calculate powers and multiplication

$g(6) = 36 - 18$

Step3: Compute final subtraction

$g(6) = 18$

Answer:

18