Like this presentation? Why not share!

# Module 9.4.9.5,9.6

## on Aug 02, 2010

• 647 views

### Views

Total Views
647
Views on SlideShare
647
Embed Views
0

Likes
0
5
0

No embeds

### Report content

• Comment goes here.
Are you sure you want to

## Module 9.4.9.5,9.6Presentation Transcript

• Module 9 Topics 9.4, 9.5, and 9.6
• To solve an equation of this type first isolate the radical on one side and then square both sides to eliminate the radical.
• To solve the radical equation following the steps as listed in the previous slide. Be sure when to complete every side on both sides.
• Lets try several more examples just to be sure you understand the multiple steps involved in solving these types of equations. Step # 1
• Some times the radicals are not square roots but cubed roots. Here is an example.
• Here are a few for you to try. Remember to check by plugging the number you get as a result back into the equation to see if it works.
• Here are the solutions.
• Solve radical equations by graphing
• To solve by graphing type each side of the equation into y1 and y2.
• Example :
Now have the calculator find the intersection Of the two equations. Type the equation just As you see them above.
• Continuing with the solution to the radical equation . So the solution for x would be 10. Check it to make sure it works in the original equation.
• Define domain and range.
Graph the following equations and state their domain and range.
• Solutions
• Domain all real numbers greater than or equal to
• Zero, Range all real numbers greater than or equal
• to zero.
• Domain all real numbers greater than or equal to
• -2, Range all real numbers greater than or equal to
• 0.
• Doman all real numbers greater than or equal to
• -2, Range all real numbers greater than or equal to
• -3.
• General form of a radical equation What affect does a have on the graph is it is positive or negative? What affect does increasing h or decreasing h have on the equation? How does +k and –k affect the graph? Try graphing a few to come up with the answers. Use your graphing calculators.
• Review all of Module 9