Question

Determine whether the graph of y = −5x2 + 3x + 8 opens up or down and whether it has a maximum or minimum point.

Answer 1

negative sign on that first term tells us this graph opens down, thus there is a maximum at that point

Answer 2

it concaves down since ax^2 + bx + c

a is a negative number.

Which also means that it has a maximum point