Approximate area by an endpoint or trapezium rule
Use the displayed rule to approximate the area under the curve
\[p(z)=2\,z + 6\]
The function is increasing on the interval [-1, 4]
Use the left-endpoint rectangle rule with 5 equal subintervals of width 1
Give the exact value of the approximation
| Subinterval | Endpoint used | Height |
|---|---|---|
| \([-1,\;0]\) | left | ? |
| \([0,\;1]\) | left | ? |
| \([1,\;2]\) | left | ? |
| \([2,\;3]\) | left | ? |
| \([3,\;4]\) | left | ? |
Find the approximate area, giving the requested precision