And I need you to plot the exact requested graph 📈 with this template following all it's meet points on the graph so I can follow to plot

• X-axis (horizontal): Label this axis $L \, (\text{cm})$.
  • Choose a scale where 1 major grid square (10 small squares) represents $10 \, \text{cm}$.
  • Mark the axis at $0, 10, 20, 30, \dots, 90 \, \text{cm}$.
• Y-axis (vertical): Label this axis $T^2 \, (\text{s}^2)$.
  • Choose a scale where 1 major grid square (10 small squares) represents $0.5 \, \text{s}^2$.
  • Mark the axis at $0, 0.5, 1.0, 1.5, \dots, 4.0 \, \text{s}^2$.

• For each pair of $(L, T^2)$ values, mark a small 'x' or a dot on the graph.
  • $(40 \, \text{cm}, 1.61 \, \text{s}^2)$: Plot at $x=4$ major squares, $y=3$ major squares and 2.2 small squares up.
  • $(50 \, \text{cm}, 2.02 \, \text{s}^2)$: Plot at $x=5$ major squares, $y=4$ major squares and 0.4 small squares up.
  • $(60 \, \text{cm}, 2.43 \, \text{s}^2)$: Plot at $x=6$ major squares, $y=4$ major squares and 8.6 small squares up.
  • $(70 \, \text{cm}, 2.82 \, \text{s}^2)$: Plot at $x=7$ major squares, $y=5$ major squares and 6.4 small squares up.
  • $(80 \, \text{cm}, 3.24 \, \text{s}^2)$: Plot at $x=8$ major squares, $y=6$ major squares and 4.8 small squares up.
  • $(90 \, \text{cm}, 3.61 \, \text{s}^2)$: Plot at $x=9$ major squares, $y=7$ major squares and 2.2 small squares up.

• Draw a single straight line that passes as close as possible to all the plotted points. This line should also pass through the origin $(0,0)$ as $T^2$ is directly proportional to $L$ for a simple pendulum.

4. From the graph calculate the gradient.

To calculate the gradient accurately, select two points that are far apart on your drawn best-fit line. These points do not necessarily have to be your original data points. For example, let's choose:

• Point 1: $(L_1, T_1^2) = (40 \, \text{cm}, 1.61 \, \text{s}^2)$
• Point 2: $(L_2, T_2^2) = (90 \, \text{cm}, 3.61 \, \text{s}^2)$

The gradient of the graph is $\boxed{0.04 , s^2