Question

What is the equation for the axis of symmetry of the quadratic
function f(x) = 5x2 + 30x - 16?

Answer 1

For quadratics, the axis symmetry equation is -b/2a.

so in the above equation, a=5, b=30, c=-16
So plug and chug and you get an answer offfff? :)

Answer 2

-30/2*5 = -30/10 = -3

so the axis of symmetry will be x = -3