Solve for x.
y=4+bx^2
a) x=±y−4b√
b) x=y−42b
c) x=y−4b
d) x=±y−4√b

± = x

Step-by-step explanation:

to solve y = 4 + bx², we want x alone, so lets subtract 4 from both sides to start

y - 4 = bx² < now divide both sides by b to get x alone

= x² < we can square root both sides to get rid of the x² in the equation

± = x

the equation above is our answer. looking at the answer choices, they look a bit messed up, but I would have to say the answer is A if that line above the b is a division symbol

In algebra, a quadratic equation is any equation that can be rearranged in standard form as where x represents an unknown, and a, b, and c represent known numbers, where a ≠ 0. If a = 0, then the equation is linear, not quadratic, as there is no term.

Step-by-step explanation: