Q. Given the function f(x)=67x2−4, find the value of f(−2) in simplest form.Answer:
Given Function: We are given the function f(x)=67x2−4 and we need to find the value of f(−2). To do this, we will substitute x with −2 in the function and simplify.
Substitute x with −2: Substitute x with −2 in the function f(x)=67x2−4.f(−2)=67(−2)2−4
Calculate square of −2: Calculate the square of −2.(−2)2=4
Substitute value back: Substitute the value of (−2)2 back into the function.f(−2)=(67)∗4−4
Multiply and simplify: Multiply (67) by 4.67∗4=628