I believe if b were to equal the value of 0, there would be 2 solutions to the function. Or not mainly if the resulting expression turns out to be a difference of squares.
Eg. f(x) = 2x^2 + 0x + 2
2x^2 + 2
2(x^2 + 1)
Here there would not be x intercepts, mainly because x cannot be solved.
We already know that 0.5 of an hour, or half of an hour, is 30 minutes. We also know that 3 dozen equals 36. With this information, we can conclude that Natalie can make 72 cookies in one hour. 72 times 5 is 360. 360 divided by 12 is 30, so, Natalie can bake 30 dozen, or 360, cookies in five hours.
Here u go refer to the attachment below! v
A domain is an input that you put in an equation(x). A range is an output (y) that is the result of a certain input.
Hope this helps and please mark as brainliest!