You can
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Explain how the graph of y = f(x + h) can be obtained from the graph of
y = f(x) when h > 0 , and also when h < 0.
When you replace x by x + h and h is positive, then the addition of h to
x will cause the values of x to have to be chosen h units less to offset the
addition. That will cause all the points to move left by h units.
When you replace x by x + h and h is negative, then that's really a
subtraction of |h| from x and will cause the values of x to have to be
chosen |h| units more to offset the subtraction. That will cause all the
points to move right by |h| units.
Edwin
