Question

evaluate the expression when y = 1.
y · 9

Explanation:

Step1: Substitute y with 1

We know that \( y = 1 \), so we substitute \( y \) in the expression \( y \cdot 9 \) with 1. The expression becomes \( 1 \cdot 9 \).

Step2: Calculate the product

Now we calculate \( 1 \cdot 9 \). By the multiplication rule, any number multiplied by 1 is the number itself, so \( 1 \cdot 9 = 9 \).

Answer:

9