Q. 23 - Precalculus Enhanced with Graphing Utilities

Question

Select a setting so that each given point will lie within the viewing window.

$\left(40,20\right),(-20,-80),(10,40)$

Step-by-Step Solution

Answer

The setting so that each given point lie within the viewing window is  

$$\begin{gathered} X_{min}=-30, \\ X_{max}=60, \\ {Y}_{min}=-100, \\ {Y}_{max}=60, \\ {X}_{scl}=10 \\ {Y}_{scl}=10 \end{gathered}$$

Step 1 . Given information

The points are $\left(40,20\right),(-20,-80),(10,40)$

Step 2 . Find the settings for viewig window

By observing given points, 

The minimum value of$X$ is$-20$ 

The maximum value of $X$is $40$

The minimum value of$Y$  is$-80$

The maximum value of $Y$ is $40$

Write the setting for the viewing window 

Take each unit on x-axis is  $10$ and

y-axis is $10.$

$$\begin{gathered} X_{min}=-30, \\ X_{max}=60, \\ {Y}_{min}=-100, \\ {Y}_{max}=60, \\ {X}_{scl}=10 \\ {Y}_{scl}=10 \end{gathered}$$