Question $1$: Write an Octave script to plot two polynomials:

$y_{-}1=x^2-2x+1$

$y_{-}2=0\mathrm{.}5x^3-x^2+3x-5$

i$.$ Customise the plot grid, add a legend, and label the $x$ and $y$ axis.

ii$.$ Use an octave function for $x$ values from $-5$ to $+5$ with $100$ points.

iii. Use a blue solid line with a width of $0\mathrm{.}5$ for $y_{-}1$

iv$.$ Use a red dash line with a width of $1\mathrm{.}5$ for $y_{2}2$

v$.$ Set the correct limits on the axis to $(-5,5)$

vi$.$ Set the axis labels with font size of $20$ and bold.

vii. Set title bold with font size $12.$ Add your student number to title instead of $123456789.$

viii. Put legend on top as shown in the figure below.

ix$.$ Save the figure as a $.$png file.

$y=x^2-2x+1$

$--,y=0\mathrm{.}5x^3-x^2+3x-5$

Plot of Two Polynomials: $123456789$