Question

Which interval for the graphed function has a local

minimum of 0?
O [-3, -2]
O (-2, 0]
O [1, 2]
O [2,4]

Answer 1

Answer: D. [2, 4]

You're looking for "parabola" like shapes in which the lowest point has a y coordinate of y = 0. In this case, it would be the "parabola" portion on the right that has its lowest point at (3,0). The only interval that fits is
`2 \le x \le 4` which in interval notation is written as [2,4]. So this fits with choice D.