Identify Function and Value: Identify the function and the value to be substituted into the function.The function given is f(x)=−x2−12, and we need to find the value of f(4).
Substitute Value into Function: Substitute the value 4 into the function in place of x.f(4)=−(4)2−12
Calculate Square of 4: Calculate the square of 4.42=16
Substitute Result into Function: Substitute the result from Step 3 into the function.f(4)=−(16)−12
Multiply −1 by Square: Multiply −1 by the square of 4.−(16)=−16
Add Result to −12: Add the result from Step 5 to −12.f(4)=−16−12
Calculate Final Result: Calculate the final result. f(4)=−28