Question

# find an equation of the form y=ax^2 + bx + c, whose graph passess through the points (2, 3), (-2, 7) and (1, -2). You must use a system of linear equa

Forms of linear equations
find an equation of the form $$y=ax^2 + bx + c$$, whose graph passess through the points (2, 3), (-2, 7) and (1, -2). You must use a system of linear equations in three variables for this problem.