To determine if Dr. Ellison is right or wrong, we can substitute the x-coordinate of the point (2, 13) into the equation \( y = -3x + 7 \) and see if we get the corresponding y-coordinate (13).
Substituting \( x = 2 \):
\[ y = -3(2) + 7 \] \[ y = -6 + 7 \] \[ y = 1 \]
The calculation shows that when \( x = 2 \), \( y = 1 \), which does not match the y-coordinate of the solution (13). Therefore, Dr. Ellison is wrong.
The correct response is:
Dr. Ellison is wrong.