[size=100]Use the applet to explore how the slope of a line changes.[br][br][/size][size=100]Move the [b]slope slider [/b][b]m[/b] left or right to adjust the slope value and see how the line responds.[br]Use also the [b]intercept slider b[/b] to see how the whole line shifts vertically.[br][/size]

1. What happens to the direction of the line as you increase the value of [math]m[/math]? How about when you decrease the value?[br]2. What happens to the direction if you make the slope negative? [br]3. What does the line look like when [math]m=0[/math]?[br]4. How can you tell from the graph whether the slope is positive, negative or zero?

1. What happens to the line when you increase the value of [math]b[/math]?[br]2. What happens if you decrease [math]b[/math]?[br]3. How can you identify the y-intercept on the graph? [br]4. If two lines have the same slope but different [math]b[/math] values, how do their graphs compare?