Show how to evaluate the equation for x = 2 and x = 6. Plug in the x values, then evaluate.

1 answer

To evaluate an equation for specific values of \( x \), you need to substitute those values into the equation and then perform the calculations.

Let's say we have a general equation \( f(x) \). For demonstration, I'll use a simple equation like \( f(x) = x^2 + 3x + 1 \).

Step 1: Plug in \( x = 2 \)

  1. Substitute \( x = 2 \) into the equation: \[ f(2) = (2)^2 + 3(2) + 1 \]

  2. Calculate: \[ f(2) = 4 + 6 + 1 = 11 \]

Step 2: Plug in \( x = 6 \)

  1. Substitute \( x = 6 \) into the equation: \[ f(6) = (6)^2 + 3(6) + 1 \]

  2. Calculate: \[ f(6) = 36 + 18 + 1 = 55 \]

Summary of the results:

  • For \( x = 2 \), \( f(2) = 11 \)
  • For \( x = 6 \), \( f(6) = 55 \)

You can replace \( f(x) = x^2 + 3x + 1 \) with any other equation, just follow the same substitution and evaluation steps.