Suppose a student conducted a lab to determine absolute zero by varying the temperature and measuring the pressure at a constant volume. The data collected is given in the following table for $1\mathrm{.}000$ atm of methane gas in a $150mL$ Erlenmeyer flask with a thermometer and pressure gauge, but no gas syringe.

$\backslash$table$[[$Temperature$,T(\text{'}$C$),$Pressure, $P($atm$)],[-15\mathrm{.}0,0\mathrm{.}876],[0\mathrm{.}0,0\mathrm{.}927],[10\mathrm{.}0,0\mathrm{.}961],[21\mathrm{.}5,1\mathrm{.}000],[30\mathrm{.}0,1\mathrm{.}029],[40\mathrm{.}0,1\mathrm{.}063],[50\mathrm{.}0,1\mathrm{.}097],[60\mathrm{.}0,1\mathrm{.}131],[80\mathrm{.}0,1\mathrm{.}198]]$

Create a graph of the data with the temperature, in degrees Celsius, on the $x-$axis and the pressure, in atmospheres, on the $y-$axis. Include the trendline, with its slope and $y-$intercept, on your graph. Record the slope and $y-$intercept from the trendline.

slope:

$at\frac{m}{}C$

$y-$intercept:

atm