MA-228
Gradient
Lower Sec Maths · Secondary 1 · Medium · Gradient
A straight-line graph has equation , where is time in hours and is the amount of water (in litres) left in a tank. What does the gradient of the graph represent?
- The tank loses 4 litres of water every hour.
- The tank starts with 4 litres of water.
- The tank loses 40 litres of water every hour.
- The tank is empty after 4 hours.
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