### Home > CCA2 > Chapter 4 > Lesson 4.1.2 > Problem 4-30

4-30.

Consider the graphs of at right.

Write an equation that you could solve using points

and. What are the solutions to your equation? Substitute them into your equation to show that they work.Set

andequal to each other:Are there any solutions to the equation in part (a) that do not appear on the graph? Explain.

Solve the equation for

.Write an equation that you could solve using point

. What does the solution to your equation appear to be? Again, substitute your solution into the equation. How close was your estimate?Set

equal to. What are the domains and ranges of

and?Domain of

: All real numbersRange of

: All real numbersDomain of

: All real numbersRange of