Showing posts with label

**slope**. Show all postsShowing posts with label

**slope**. Show all posts## Saturday, May 4, 2013

### Interactive: Mean Value Theorem

**Mean Value Theorem:**Let \(f\) be a function that satisfies the following:

- \(f\) is continuous on a closed interval \([a, b]\).
- \(f\) is differentiable on the open interval \((a,b)\).

\[f'\left( p \right) = \frac{{f\left( b \right) - f\left( a \right)}}{{b - a}}\]

**Instructions:**With the mouse, move points A and B along the function to see the Mean Value Theorem in action. Refresh browser to start over.

**YouTube Video Lectures**by Rob Shone

## Thursday, April 25, 2013

### Interactive: Perpendicular Lines

**Interactive Instructions:**Move the green points to change

*m*and see that perpendicular lines have opposite reciprocal slopes.

[

**NOTES**: Perpendicular Lines ]### Interactive: Parallel Lines

**Interactive Instructions:**Move the green points to change

*m*and see that parallel lines have the same slope. You can also move the orange line.

[

**NOTES**: Parallel Lines ]
Labels:
algebra,
interactive,
line,
lines,
math,
parallel,
same slope,
slope

## Tuesday, April 23, 2013

### Interactive: Slope-Intercept Form

**Interactive Instructions:**Slope-intercept form:

*y = mx + b*. Move the green points to change

*m*and

*b*.

[

**NOTES**: Slope and y-Intercept ]## Monday, April 22, 2013

## Saturday, March 23, 2013

### Elementary Algebra Exam #2

Click on the 10 question exam covering topics in chapters 3 and 4. Give yourself one hour to try all of the problems and then come back and check your answers.

[ **PDF**-> Elementary Algebra Sample Exam #2 ]

**Graph. Also, find and label both the***x*- and*y*-intercepts.**Are the following lines parallel, perpendicular, or neither? Justify your answer.**

**Find the equation of the line:**
9. A light aircraft, flying with the wind, can travel 270 miles in 2 hours. On the return trip, flying against the same wind, the plane can only travel 210 miles in the same amount of time. What is the speed of the wind?

10. Marcia invested a total of 2,500 dollars in two separate accounts. One account earned 6% annual interest and the other earned 8%. If her total interest for the year was 167 dollars, then how much did she invest in each account?

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Elementary Algebra Exam #2 by John Redden is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 3.0 Unported License.

## Friday, February 15, 2013

### Intermediate Algebra Exam #1

Click on the 10 question exam covering topics in chapters 1 and 2. Give yourself one hour to try all of the problems and then come back and check your answers.

Labels:
Absolute value,
algebra,
algebra 2,
equation,
exam,
graph,
graphing,
inequalities,
inequality,
intercept,
intermediate algebra,
math,
reflection,
simplify,
slope,
solve,
solving,
transformation,
translation

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