The axis of symmetry for a quadratic equation can be found using the formula x =-b/2a , where a and b are coefficients in the qu

Question

4 years ago

11

The axis of symmetry for a quadratic equation can be found using the formula x =-b/2a , where a and b are coefficients in the qu

adratic equation and x represents the values along a vertical line on the coordinate plane. When the equation is solved for a, such that b is the numerator of the resulting fraction, what is the denominator of the fraction?
2x

–2x

1/2x

–1/2x

Mathematics

2 answers:

maxonik [38] · Answer 1 · 2021-11-04T19:36:04+03:00

maxonik [38]4 years ago

6 0

The answer is B on edgen.

Liula [17] · Answer 2 · 2021-11-04T18:17:26+03:00

Liula [17]4 years ago

4 0

If x = -b/2a, then 2a = -b / x so a = -b / 2x or a = b / -2x

So the denominator is -2x because it has to take the minus sign that the numerator refused to take ;-)