Which represents a quadratic function?
f(x) = 2x3 + 2x2 – 4
f(x) = -7x2 - x + 2
f(x) = -3x + 2
f(x) = 0x2 + 3x - 3

In 2009, there were 1570 bears in a wildlife refuge. in 2010, the population had increased to approximately 1884 bears. if this trend continues and the bear population is increasing exponentially, how many bears will there be in 2018?

Which equation is y = -6x2 + 3x + 2 rewritten in vertex form?

What is the point of inflection for the function f(x)=2cos4x on the interval (0, pi/2)