We've updated our
Privacy Policy effective December 15. Please read our updated Privacy Policy and tap

Study Guides > College Algebra

Solutions: Functions Practice Test

1. The relation is a function. 3. −16 5. The graph is a parabola and the graph fails the horizontal line test. 7. 2a2a2{a}^{2}-a\\ 9. 2(a+b)+1-2\left(a+b\right)+1\\ 11. 2\sqrt{2}\\ 13. Graph of f(x). 15. even 17. odd 19. = –7 and = 10 21. f1(x)=x+53{f}^{-1}\left(x\right)=\frac{x+5}{3}\\ 23. (,1.1) and (1.1,)\left(-\infty ,-1.1\right)\text{ and }\left(1.1,\infty \right)\\ 25. (1.1,0.9)\left(1.1,-0.9\right)\\ 27. f(2)=2f\left(2\right)=2\\ 29. f(x)={x if x23 if x>2f\left(x\right)=\begin{cases}|x|\text{ if }x\le 2\\ 3\text{ if }x>2\end{cases}\\ 31. x=2x=2\\ 33. yes 35. f1(x)=x112{f}^{-1}\left(x\right)=-\frac{x - 11}{2}\\

Licenses & Attributions