b) 10 percent of all eighth-grade students at HACS are reading below grade level
Step-by-step explanation:
The sample is eight-grade students at High Achievers Charter School at a particular time and this forms a part of the total population of eight-grade students in the school. So we can conclude that for every eight-grade class in the school, 10% are reading below grade level.
The solutions to a function are the points where the graph of the function crosses the x-axis, but only if the solutions are real numbers. If the function has imaginary solutions, then you don't see those on the graph.
