When the input is X = 0.3, which of the following is the output of the function y = 3x + 6?

(1 point)

• 6.3

• 9

• 0.3

• 6.9

1 answer

To find the output of the function \( y = 3x + 6 \) when \( x = 0.3 \), we substitute \( x \) into the equation:

\[ y = 3(0.3) + 6 \]

Calculating this step-by-step:

  1. Multiply \( 3 \) by \( 0.3 \): \[ 3 \times 0.3 = 0.9 \]

  2. Add \( 6 \) to \( 0.9 \): \[ 0.9 + 6 = 6.9 \]

So, the output \( y \) when \( x = 0.3 \) is \( 6.9 \).

Thus, the correct answer is:

• 6.9