A glass marble factory produces 4.5 x 104 marbles
in 1,800 minutes. What is
the factory's unit rate of
production in marbles per
minute?

Heather is writing a quadratic function that represents a parabola that touches but does not cross the x-axis at x = -6. which function could heather be writing? fx) = x2 + 36x + 12 = x2 - 36x - 12 f(x) = -x + 12x + 36 f(x) = -x? - 12x - 36