If \(y = \sqrt{ax-b}\) express x in terms of y, a and b
MATHEMATICS
WAEC 1999
If \(y = \sqrt{ax-b}\) express x in terms of y, a and b
- A. \(x = \frac{y^2-b}{a}\)
- B. \(x = \frac{y+b}{a}\)
- C. \(x = \frac{y-b}{a}\)
- D. \(x = \frac{y^2 + b}{a}\)
Correct Answer: D. \(x = \frac{y^2 + b}{a}\)
Explanation
\(y = \sqrt{ax-b}\)
\(y^2 = ax-b\)
\(y^2 +b = ax\)
\(x = \frac{y^2 + b}{a}\)
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