Name: Date:Write down the inverse function f^{-1}(x) given:
| Question 1: f(x)=\sqrt{7x} | Question 2: f(x)=(8x)^2 |
| Question 3: f(x)={\Large\frac{x}{6}} | Question 4: f(x)=8-x |
| Question 5: f(x)=8x-5 | Question 6: f(x)=x-5 |
| Question 7: f(x)={\Large\frac{x}{9}} | Question 8: f(x)=4-x |
| Question 9: f(x)=9x^2 | Question 10: f(x)=2(x-6) |
| Question 11: f(x)={\Large\frac{3}{x}} | Question 12: f(x)=3(x+4) |
| Question 13: f(x)=5\sqrt{x} | Question 14: f(x)={\Large\frac{5}{4}}x |
| Question 15: f(x)={\Large\frac{7}{x}} | Question 16: f(x)=5x+7 |
| Question 17: f(x)={\Large\frac{8}{5}}x | Question 18: f(x)=x-2 |
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Answers
| Question 1: f^{-1}(x)={\Large\frac{x^2}{7}} | Question 2: f^{-1}(x)=\Large \frac{\sqrt x}{8} |
| Question 3: f^{-1}(x)=6x | Question 4: f^{-1}(x)=8-x |
| Question 5: f^{-1}(x)={\Large\frac{x+5}{8}} | Question 6: f^{-1}(x)=x+5 |
| Question 7: f^{-1}(x)=9x | Question 8: f^{-1}(x)=4-x |
| Question 9: f^{-1}(x)=\Large \sqrt \frac{x}{9} | Question 10: f^{-1}(x)={\Large\frac{x}{2}}+6 |
| Question 11: f^{-1}(x)={\Large\frac{3}{x}} | Question 12: f^{-1}(x)={\Large\frac{x}{3}}-4 |
| Question 13: f^{-1}(x)={\Large\frac{x^2}{25}} | Question 14: f^{-1}(x)={\Large\frac{4}{5}}x |
| Question 15: f^{-1}(x)={\Large\frac{7}{x}} | Question 16: f^{-1}(x)={\Large\frac{x-7}{5}} |
| Question 17: f^{-1}(x)={\Large\frac{5}{8}}x | Question 18: f^{-1}(x)=x+2 |