Create an Algebraic Expression with Given Parameters: a=4, b=2, c=5

To derive the algebraic expression based on the parameters given, we follow these steps:

• Step 1: Recognize the given parameters: $a = 4$, $b = 2$, and $c = 5$.
• Step 2: Acknowledge that the standard form for a quadratic expression is $y = ax^2 + bx + c$.
• Step 3: Substitute the given parameter values into this quadratic expression.

Now, let's implement these steps to form the quadratic expression:
Step 1: The given parameters are $a = 4$, $b = 2$, and $c = 5$.
Step 2: Our basis is the quadratic form $y = ax^2 + bx + c$.
Step 3: Substituting the given values, we find:

$y = 4x^2 + 2x + 5$

This substitution provides us with the quadratic expression $y = 4x^2 + 2x + 5$, fulfilling the problem's requirements.

Therefore, the correct algebraic expression is $4x^2 + 2x + 5$.