Final answer:
To find g(3) for the function g(x) = -5x², you replace x with 3, square 3 to get 9, and then multiply -5 by 9 to get -45.
Step-by-step explanation:
To calculate g(3) for the function g(x) = -5x², you simply substitute x with 3 in the equation and then perform the arithmetic:
- Replace x in the equation with 3: g(3) = -5 × 3².
- Calculate the square of 3: 3² = 9.
- Multiply -5 by 9: -5 × 9 = -45.
Therefore, the value of g(3) is -45.