Determine whether `f(x)=(2x+3)/4` for `f:RtoR` is invertible or not . If so find it.

Explanation

To determine whether the function \( f(x) = \frac{2x + 3}{4} \) is invertible, we need to check if it is one-to-one (injective) and onto (surjective). If both conditions are satisfied, the function is invertible.

### Step 1: Check if the function is one-to-one

To check if \( f \) is one-to-one, we assume \( f(x_1) = f(x_2) \) and show that this implies \( x_1 = x_2 \).

1. Start with the equation:
\[
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