Question

In a quadratic function of the form ax^2+bx+c, which of the following is NOT true?

A) The y-intercept is C.
B) If a is positive, the parabola opens up.
C) The vertex has an x-coordinate of -b/2a.
D) The axis of symmetry is the line y=-b/2a.

Answer 1

A- For x=0 , y intercept =c RIGHT
B- If a>0, the parabola has a minimum and open upwards: RIGHT
C-Te vertex has an x-coordinates = -b/2a: RIGHT
D- NO WRONG. The axis of symmetry is x=-b/2a