Answer
The student's mistake was he interchanged the settings for the $x$-scaleand $y$-scale.
One reasonable set of $x$-scale and $y$-scale would be:
$X_{\text{min}}=50$, $X_{\text{max}}=750$
$Y_{\text{min}}=2$, $X_{\text{max}}=12$
Work Step by Step
Recall:
When creating a scatterplot, the following settings must be followed:
$X_{\text{min}}$ should be slightly lower than the lowest $x$-value
$X_{\text{max}}$ should be slightly higher than the highest $x$-value
$Y_{\text{min}}$ should be slightly lower than the lowest $y$-value
$Y_{\text{max}}$ should be slightly higher than the highest $y$-value
The given data has the following characteristics:
lowest $x$ value is $100$ and maximum is $700$;
lowest $y$ value is $4$ and maximum is $10$
The student's mistake was he interchanged the settings for the $x$-scaleand $y$-scale.
One reasonable set of $x$-scale and $y$-scale would be:
$X_{\text{min}}=50$, $X_{\text{max}}=750$
$Y_{\text{min}}=2$, $X_{\text{max}}=12$
