Discovering the Meaning of yIntercept (WS 5)
Below
you can see a linear equation and its graphical representation as a
line.
Note: Write down all your answers on a sheet of paper.
 Examine the line.
(a) Explain what is different
compared to the line in the previous dynamic
constructions.
(b) Have a look at the equation of the line. Again,
describe what is different compared to the equation in the
previous examples.
 Point B marks the intersection point between the line and the yaxis.
(a) Move point B
along the yaxis and describe how the position of the line changes.
(b) Explain how the equation of the line is effected by dragging point B.
 Try to find a connection between the coordinates of
point B
and the equation of the line.
(a) Write down your assumption.
(b) Check your assumption
for at least 3 different positions of point B and 2 different
values of slider m.
