



 
We have two responses for you Tiana, I would first plot some points to sketch the graph of y = x. Make a table
plot the points sketch the graph. y = x For the function y = x  4 each yvalue is 4 less than the corresponding yvalue for y = x.
I hope this helps,
Two possibilities: (1) The brute force method, on which everybody has to fall back sometimes, is to choose a lot of values of x, compute x and then x  4 for each of them, and plot the point. Then draw a curve through the points. It helps to know that the absolute value function, unlike most others, really does yield a graph with a "kink" in it; it is thus an exception to the usual situation when a smooth curve is appropriate. (2) By transformation: if you know what the graph of y=x looks like (and it is useful to know), you can lower it 4 units to get the graph you want. You can use the same technique to plot things like y = sin(x) +3, y = x^2  1, etc. Good Hunting!
 


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