$\displaystyle x=- \frac{5}{4}$\displaystyle x=- \frac{5}{4}

$\displaystyle x= \frac{5}{4}$\displaystyle x= \frac{5}{4}

$\displaystyle y=- \frac{5}{4}$\displaystyle y=- \frac{5}{4}

$\displaystyle y=- \frac{25}{16}$\displaystyle y=- \frac{25}{16}