See this solution/explanation (answer is '7 meters'):
1. According to the condition 'y' means the height, and 'x' - the length from the start of the lift hill.
2. The phrase 'height of 343 meters' means y=343.
3. From the another side y=x³. If to substitute 343 instead of 'y': 343=x³, - it is possible to find the value of 'x'.
x=<u>7 [m]</u> - how far from the start of the lift hill...
Hey there!!
49/9 = 7
is a rational number as it has a definite answer 7.
Hope it helps you.
Rise up on the graph by 3, and go right by 2 (do that over and over to get a complete line)