Step & Key Operation | Display | Notes |
*Use either pen touch or cursor to operate.
Y= * 2nd F SUB 0
ENTER 2 ENTER
GRAPH
Notice that the addition of 2 moves the basic y = x 2 graph up two units and the addition of - 2 moves the basic graph down two units on the
fact that adding k (>0) within the standard form y = a (x - h) 2 + k will move the basic graph up k units and placing k (<0) will move the basic graph down k units on the
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| SUB | 2 | ENTER | |
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| 0 | ENTER |
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GRAPH
Notice that the multiplication of 2 pinches or closes the basic y = x 2 graph. This demonstrates the fact that multiplying an a (> 1) in the standard form y = a (x - h) 2 + k will pinch or close the basic graph.
4-1
Change the equation in Y2 to y = - 2x 2.
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ENTER
View both graphs.
GRAPH
Notice that the multiplication of
ing an a
The