A typical graphing calculator has a height to width ratio of 23.
Yes
Practice makes perfect
A typical graphing calculator has a height to width ratio of 23. Therefore, the graphing calculator will display a square window if the height and width satisfy this ratio.
Height/Width=2/3
We are asked to determine if a window with the following parameters is a square.
-8 ≤ x ≤ 7
-3 ≤ y ≤ 7
To do that, let's first find the height y and width x of the given viewing window.
Width:& 7-( - 8)=15
Height:& 7-( - 3)=10
Now we check if the ratio of height and width is equal to 23.
We got a true statement. This means that the viewing window is a square.
Extra
Setting Up the Window in a Graphing Calculator
To set up the window in a graphing calculator, first press WINDOW. To see the screen form the example, set Xmin to - 8, Xmax to 7, Ymin to -3, and Ymax to 7.
Now press GRAPH to see the viewing window.
As we can see, the tick marks are spaced the same on both axes. Therefore, this is a square viewing window.
