Question

Solve for x.

y=4+bx^2

A) x=±y−4b‾‾‾‾√

B) x=y−42b

C) x=y−4b

D) x=±y−4√b

Answer 1

±
`\sqrt{(y-4)/(b) }` = x

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

`(y-4)/(b)` = x² < we can square root both sides to get rid of the x² in the equation

±
`\sqrt{(y-4)/(b) }` = 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