Calculator Strategies – Graph Relation Analyze GRA
We use it to find:
1- Slope or the rate of change (rate).
2- Zero or the x-intercept ( root or solution ).
3- Vertex, Maximum or Minimum for Quadratic functions Graphs.
Steps for GRA :
1- Ctrl – N ( If it asks to if you want to save click No )
2- Add Graph:2. Enter
3- del 6: Relation ( Remember f(x)=y )
4- Write down the relation the way it is. Enter
5- To find the Slope , press Menu 6 ( Analyze ) 5 ( dy/dx ) , click on the line and get your answer.
6- To find the Zero, press Menu 6 ( Analyze ) 1 (zero) , a vertical dotted line appears , Enter before the x-intercept and move to after x-intercept and press enter. you would see the word zero in yellow.
Note: sometimes you might need to zoom out the graph ( Menu 4 4 ). if needed!
Slope: Menu 65
Zero: Menu 61