for the axis of symmetry ... x = -b / 2a
-2 = - -4 / 2a ... -4 a = 4
The line of symmetry of the parabola whose equation is y = ax2 - 4x + 3 is x = -2. What is the value of "a"?
-2
-1/2
-1
1 answer
-2
-1/2
-1
1 answer