Question

The function f is defined by f(x)=-x2+2x-7. What is the value of f(-3)?

Answer 1

Answer:

Option A $f(-3)=-22$

Step-by-step explanation:

we have

$f(x)=-x^{2}+2x-7$

we know that

f(-3) is the value of f(x) when the value of x is equal to -3

so

For x=-3

substitute the value of x=-3 in the equation

$f(-3)=-(-3)^{2}+2(-3)-7$

$f(-3)=-9-6-7$

$f(-3)=-22$