Which statement correctly identifies a local minimum of the graphed function? Over the interval [–2, –1], the local minimum is 2.2.
Over the interval [0.5, 2], the local minimum is 4.
Over the interval [–3, –2], the local minimum is 0.
Over the interval [–1, 0.5], the local minimum is 1.

That’d be 9 years or something

So the first thing we do is to multiply the top equation by 3. the reason i want to do this is i notice there will be a 6y on both equations and can possibly add/subtract them. so we get 6y = -3x + 27. adding that and the second equation we get 6x = 27-15 which is 12. divide by 6 and we get 2. ∴ x = 2. substituting 2 into the first equation we get 2y = -2 + 9 which is 7. divide by 2 and we get 7/2. ∴ y = 7/2, x = 2.