To predict your elevation level in feet after skiing for 60 seconds, we can substitute \( x = 60 \) into the linear model \( y = -30x + 6,000 \).
Let's calculate it:
\[ y = -30(60) + 6,000 \]
Calculating the first part:
\[ -30(60) = -1800 \]
Now substituting back into the equation:
\[ y = -1800 + 6,000 = 4,200 \]
So, after 60 seconds of skiing, you will be 4,200 feet high.