The amount of fuel remaining in a gas grill is a function of the numbers of hours , h, that the grill has been used. This relationship can be expressed by this function: f(h) = 100- h. Which of these sets represents the domain, D, and range, R, of this function?

The parabola y = x² - 4 opens: a.) up b.) down c.) right d.) left

The manufacturer of a new product developed the following expression to predict the monthly profit, in thousands of dollars, from sales of the productwhen it is sold at a unit price of x dollars.-0.5x^2 + 22x - 224what is represented by the zero(s) of the expression? a.the profit when the unit price is equal to 0b.the unit price(s) when the profit is equal to 0c.the profit when the unit price is greatestd.the unit price(s) when profit is greatest

Which describes the difference between the graph of f(x)=x^2 and g(x)=-(x^2-2)