Question

Evaluate the function. f(x)=−x^2 Find f(−5)

Answer 1

For each occurence of x in f(x) substitute 4 and clculate the result

f(x)=-x^2+5 becomes

f(4)=-(4)^2+5

f(4)=-16+5

f(4)=-11

Answer 2

25

Explanation:

put -5 from x so (-(-5))²=25