Problema Solution
Select the x-coordinate of the vertex of the parabola defined by the function f(x) = -3x2 + 7x + 1
Answer provided by our tutors
if the prabola is given by f(x) = ax^2 + bx + c then -b/(2a) will give the x-coordinate of the vertex
f(x) = -3x^2 + 7x + 1
-7/(2*(-3)) = 7/6
x = 7/6 is the x-coordinate of the vertex.