Question

Найди f(-1) если f(x) =- x^2 -3х+4

Answer 1

f(-1)=-(-1)²-3×(-1)+4=1-(-3)+4=4+4=8

f(-1)=8

Answer 2

To find f(-1) for the given function f(x) = -x^2 - 3x + 4, we simply substitute x with -1 in the function and compute the result:

f(-1) = -(-1)^2 - 3(-1) + 4

Now, follow the order of operations:

f(-1) = -(1) + 3 + 4

f(-1) = -1 + 3 + 4

f(-1) = 6

Therefore, f(-1) is equal to 6.