Showing posts with label polynomials. Show all posts
Showing posts with label polynomials. Show all posts

Sunday, November 4, 2012

Chapter 5 Sample Test Questions

Click here for a worksheet containing 20 sample test questions with answers.


Word Problem: A projectile is fired from the top of an 80 foot building with an initial velocity of 64 feet per second. The height of the projectile in feet after t seconds is given by the following function and its graph.
   a. Use the graph to determine how long it takes to reach the maximum height.
   b. How much time will it take to hit the ground?
   c. What is the height of the projectile after 4 seconds?


Adding and Subtracting Polynomials

Adding polynomials requires us to first identify then combine like terms. Remember that like terms are terms with the exact same variable part.
Add the polynomials.
When subtracting polynomials you distribute the negative one first and then identify and combine like terms.

Subtract the polynomials.
We may encounter function notation,
In this case, just add or subtract the given polynomials as we did in the above examples.

For the given functions find (f + g)(x) and (f - g)(x).
Video Examples on YouTube: