Practice problem
Solve the following system using elimination: {y=x2−x−90y−30=x\begin{cases} y=x^2-x-90 \\y-30=x\end{cases}{y=x2−x−90y−30=x
(−10,40)(-10, 40)(−10,40)
(12,−18)(12, -18)(12,−18)
(−10,20)(-10, 20)(−10,20)
(12,42)(12, 42)(12,42)
(−10,−20)(-10, -20)(−10,−20)
Type a concept, like “slope” or “photosynthesis”.
