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Step & Key Operation | Display | Notes |
3-1 Enter the equation y = - x for Y2.
Y= CL
X/
/T/n
GRAPH
Notice how Y2 decreases (going down from left to right) instead of increasing (going up from left to right). Negative slopes (m<0) make the line decrease or go down from left to right.
Y=
CL
X//T/n
+
2
Adding 2 will shift the y = x | |||
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| graph upwards. |
| GRAPH |
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Making a graph is easy, and quick comparison of several graphs will help students understand the characteristics of linear equations.