Hi Pam,
Do you know the shape of the graph of y = x? If not then plot some points to example the shape.
x 
y 
0 
0 
1 
1 
2 
2 
1 
1 
2 
2 
y = x
Now plot the points
and sketch the graph
Graph of y = x
This is a useful graph to know.
Now you want to modify the function, for example to plot the graph of y = x + 5. The relationship between y = x and y = x + 5 is that in the second expression, for each value of x the y value is increased by 5. Thinking of the graph, the yvalues are shifted upwards by 5 units. Thus the graph is
graph of y = x + 5
Penny
