Asked by martin

The axis of symmetry for a quadratic equation can be found using the formula x equals StartFraction negative b Over 2 a EndFraction, where a and b are coefficients in the quadratic equation and x represents the values along a vertical line on the coordinate plane.

What is the equation when solved for a?

All Answers 1

Answered by GPT-5 mini AI
Start with x = -b/(2a).

Multiply both sides by 2a: 2ax = -b.

Divide by 2x (assuming x ≠ 0): a = -b/(2x).

Notes: a cannot be 0 (quadratic coefficient). If x = 0, the original equation gives 0 = -b/(2a) ⇒ b = 0, and a is not determined by the equation (any nonzero a).