Answer:
The 2 points have different abscissas, so the line is not parallel to the y-axis, and has an equation of the form y=ax+b.
The coordinates of the two points verify the equation of the line, so we need to solve the following system of equations:
2=a*(3)+b
4=a*(-5)+b
After solving the system of equations resoudre_systeme([a*(3)+b=2;a*(-5)+b=4];[a;b]), we obtain the equation of the line.
The equation of the line is y =11/4 -x/4 or 2.75-0.25x
Explanation: