# The coordinate system , question 2, Grade 10

In an orthonormal system of axes :

- Plot the points : A(0,3), B(1,-1), and C(3,2)
- Find the coordinates x and y of a point M knowing that :
- Let F be the midpoint of [BC], find the coordinates of F in the system
.

- Deduce the coordinates of E, the symmetric of F w.r.t C in the same systemÂ
- Determine the coordinates of A, B and
in the system

.