Question

Rearrange the formula y = a-bx² to make x the subject.​

Answer 1

x = ±
`\sqrt{(a-y)/(b) }`

Explanation:

y = a - bx² ( subtract a from both sides )

y - a = - bx² ( multiply through by - 1 )

bx² = a - y ( divide both sides by b )

x² =
`(a-y)/(b)` ( take square root of both sides )

x = ±
`\sqrt{(a-y)/(b) }`