x$($t$)=$t$^2-7$t$+12(1)$ from t $=0$ to t $=7$ s in time steps of $0\mathrm{.}1$ s$.$ If you aren$$t sure what to do$,$ try these steps: i$.$ Autofill the times $0,0\mathrm{.}1,0\mathrm{.}2....$ in column A$,$ cells $2$ to $72.($It$$s often useful to put the title of the column in cell $1)$ ii$.$ In cell B$2,$ type an equal sign $($to tell Excel that you are about to give it an equation$)$ and then type the equation which describes x$($t$)$ using cell A$2$ as t$.$ When you are done, it should look like this...