Monday, April 29, 2013

[PRE CALC] Parabolas Example 1

This is an example of a parabola that opens up and down.  This vid shows you how to find the focus, vertex, directrix and axis of symmetry.

Tuesday, April 23, 2013

[PRE CALC] Conics Hyperbola ex 3 open up and down

This vid shows you how to find the center, foci and vertices of hyperbolas that open up and down.

[PRE CALC] Conics Hyperbolas Example 2

This video shows you how to find the equation of a hyperbola when given the coords of the foci and length of transverse axis.  What could be better than that?

Monday, April 22, 2013

Thursday, April 18, 2013

[PHYSICS] Kinetic Energy p 173 5b

This is sample problem 5b on page 173 involving the kinetic energy of a bowling ball vs a ping pong ball.

Wednesday, April 17, 2013

Tuesday, April 16, 2013

[PRE CALC] Conics Ellipses #19 p638

This is a tough one!  Study this big time.  Upright ellipse technique!

[PRE CALC] Conics Ellipses #21 p 638

This is another type of ellipse problem where you start with the standard form and have to locate the center, foci, and vertices.  Learn and enjoy.  Homework is p 638 #20.

[PRE CALC] p 638 #17

Here is problem #17 on page 638 worked out.  Please be able to do this for an upcoming quiz.  Thanks

Friday, April 12, 2013

Thursday, April 11, 2013

[PRE CALC] Mid Point problem 22 chap10.1

This is how to handle the mid point problem #22, when you have a mid point and the coords of an endpoint. The following explains how to find the other endpoint.

[PRE CALC] Conics Endpoints of a diamter prob

This video shows how to find the equation of a circle given two endpoints of a diameter.  It's very much like example #2 from the previous video.

Monday, April 8, 2013

[PRE CALC] Conics Circles Example 2

Here is the other example.  This one gives the coords of two endpoints and you have to find the equation of a circle. Enjoy.  Homework is p 627-628: 15-20, and 35-38.

[PRE CALC] Conics Circles Example 1

Hi there if you are learning about circles, watch this one first please.  Homework will be p 627-628: 15-20, 35-38.

[PRE CALC] Conic Distance and Midpt formulas

Here is a video explaining how to properly set up and do the distance and mid point formulas.  The homework for this section is p 619-620:  5-7, 12-15, 22.

Wednesday, April 3, 2013

[PRE CALC] Adding Vectors finding Resultant

This video shows you how to use a protractor and calculate resultant vectors to scale.

Tuesday, April 2, 2013

[ALG 2] Polynomial examples 6-2

Here are three examples from Chapter 6-2.  You should completely understand all of the examples.

[Pre Calc] Example 5 Vectors

Please check this one out.  It explains how to correctly find the component vectors.  The homework for tonight is p491-492:  40,41,43.

[Pre Calc] Example 6 Vectors

This is a video of how to do example 6 on page 489.  It explains how to calculate the resultant vector and direction.  Enjoy