Slope Intercept Form

Change the values of m and b by dragging the sliders or entering a value in the input box.
What does the value of m do to the graph? What does the value of b do to the graph? Make a prediction of what will happen if 1. m is 4 and b is –1 2. m is –1 and b is 4 3. m is negative 4. m is zero 5. b is negative 6. both m and b are zero What is the value of m for the perpendicular line?