Answer:
The only equation which is incorrect is in option B.
Step-by-step explanation:
Eva used the following equation in order to solving integers, which is
[tex]\frac{-h}{-k} = j[/tex]
⇒ [tex]j = \frac{h}{k}[/tex] ......... (1)
Now, if the equation Ava used is correct, then we have to find which of the given equations is not correct.
Now, in option A) it is given that [tex]- j = \frac{- h}{k}[/tex]
⇒ [tex]j = \frac{h}{k}[/tex] which is same as equation (1).
In option B) it is given that [tex]- j = \frac{- h}{- k}[/tex]
⇒ [tex]j = - \frac{h}{k}[/tex] which is not same as equation (1).
In option C) it is given that [tex]- j = \frac{h}{- k}[/tex]
⇒ [tex]j = \frac{h}{k}[/tex] which is same as equation (1).
Again, in option D) it is given that [tex]j = \frac{h}{k}[/tex]
⇒ [tex]j = \frac{h}{k}[/tex] which is same as equation (1).
Therefore, the only equation which is incorrect is in option B. (Answer)
