Question

What is the axis of symmetry for the function? y = x2 + 3x - 4?

Answer 1

The axis of simmetry of that kind of parabola has equation:\[x={-b \over 2a}\]

Answer 2

x=-b/2a. x=-3/2

Answer 3

a=1, b=3,c=-4. so -b is -3. and 2a=2*1=2

Answer 4

\[\sqrt{5x}\]