-5
-3
\(-\frac{1}{2}\)
5
Correct answer is A
Let \(f(x) = y\), then we have
\(y = \frac{x+1}{2} \implies 2y = x+1; x = 2y-1\)
Let \(f^{1}(x) = x; x = 2y-1\), replacing y with x,
\(f^{1}(x) = 2x - 1 \implies f^{1}(-2) = 2(-2) -1= -5\)
Given that \(f(x) = 5x^{2} - 4x + 3\), find the coordinates of the point where the gradient is 6....
Express 75° in radians, leaving your answer in terms of \(\pi\)....
If \(\begin{vmatrix} 4 & x \\ 5 & 3 \end{vmatrix} = 32\), find the value of x....
If (2t - 3s)(t - s) = 0, find \(\frac{t}{s}\)...
If \(y = 4x - 1\), list the range of the domain \({-2 \leq x \leq 2}\), where x is an integer....