Install matplotlib on your machine:

Windows: python $-$m pip install matplotlib

Mac: pip$3$ install $--$user matplotlib

Understand graphs.py

Modify graphs.py to label the x$-$axis as x and the y$-$axis as y$.$

Modify graphs.py to plot the straight lines with magenta dashes. Hint.

Modify graphs.py to draw the sine wave with $5$ point size.

Modify graphs.py by replacing plt$.$xlim and plt$.$ylim $($in the main function$)$ with an equivalent plt$.$axis statement.

Reproduce this graph $-$ scores.png as closely as possible.

Assumption: There are $10$ students whose student IDs are $1$ through $10.$

graphs.py:

import matplotlib.pyplot as plt

import numpy as np

# $--------------------------------------$

def plot$\_$line$($x$1,$ y$1,$ x$2,$ y$2)$:

$"""$Plot a line using the specified points."""

x $=[$x$1,$ x$2]$

y $=[$y$1,$ y$2]$

plt$.$plot$($x$,$ y$,$ "gold"$)$

# $--------------------------------------$

def plot$\_$sine$\_$wave$($start$\_$x$,$ stop$\_$x$,$ amplitude$)$:

$"""$Plot a sine wave."""

x$\_$array $=$ np$.$linspace$($start$\_$x$,$ stop$\_$x$,1000)$

y$\_$array $=$ amplitude $*$ np$.$sin$($x$\_$array$)$

plt$.$plot$($x$\_$array, y$\_$array, "red"$)$

# $--------------------------------------$

def main$($graph$\_$min, graph$\_$max$)$:

plt$.$xlim$($graph$\_$min, graph$\_$max$)$

plt$.$ylim$($graph$\_$min, graph$\_$max$)$

plot$\_$line$($graph$\_$min, graph$\_$min, graph$\_$max, graph$\_$max$)$

x$\_$array $=$ np$.$array$([$graph$\_$min, graph$\_$max$])$

y$\_$array $=$ np$.$array$([$graph$\_$max, graph$\_$min$])$

plt$.$plot$($x$\_$array, y$\_$array, "blue"$)$

plot$\_$sine$\_$wave$($graph$\_$min $//2,$ graph$\_$max $//2,$ graph$\_$max $//4)$

plt$.$show$()$

# $--------------------------------------$

main$(-100,100)$