Question

You just substituted 6 for x and found that y=80. What does y=80 represent in this problem?
y
=
10x
+
20
y
=
10·6
+
20
y
=
80

The water temperature will be
80 degrees after 6 minutes.

The water temperature
increased 80 degrees.

The water temperature increases
80 degrees every 6 minutes.

Answer 1

In the context of the equation \( y = 10x + 20 \), substituting \( x = 6 \) results in \( y = 80 \). This can be interpreted as follows:

The equation likely represents a situation where \( y \) is a measure of temperature, and \( x \) is a measure of time in minutes.

From your calculations:

1. When you plugged in \( x = 6 \):
\[
y = 10 \cdot 6 + 20 = 80
\]

This equation implies that for every minute (or unit of \( x \)), the temperature increases by 10 degrees, starting from a base temperature of 20 degrees.

Therefore, the statement that best represents the outcome of \( y = 80 \) is:

**The water temperature will be 80 degrees after 6 minutes.**

This indicates the final temperature after the specified time. The other statements do not accurately capture this specific relationship.