Q. If f(x)=x2−6x−8, what is the value of f(−2) ?Choose 1 answer:(A) −16(B) −10(C) 0(D) 8
Step 1: Evaluate the function: We need to evaluate the function f(x)=x2−6x−8 at x=−2.To do this, we substitute x with −2 in the function and simplify.f(−2)=(−2)2−6(−2)−8
Step 2: Substitute x with −2: Now we calculate the value step by step.First, we calculate (−2)2 which is 4.Then we calculate −6 times −2 which is 12.Finally, we subtract 8 from the sum of 4 and 12.−20
Step 3: Simplify the expression: We add 4 and 12 to get 16, and then subtract 8 from 16.f(−2) = 16−8
Step 4: Calculate (−2)2: Subtracting 8 from 16 gives us 8.f(−2) = 8
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