PLEASE HELP ASAP!!! 13. Populations of organisms grow at an rate, but factors such as food, habitat, predators, weather, disease, climate, & temperature can affect the maximum population size an area can support.

14. Sea otters are an example of a species where the effects of overhunting this population of organisms will severely affect the population #s of other species.

15. is determined by the # of species in a specific area as well as the # of different kinds of species in a specific area.

subject?

Explanation:

correct answer is a. and d.

answer-

the statement that f(x) = |x+a| + b has exactly one x-intercept is sometimes correct.

solution-

it solely depends on b, whether the function will have one or two or zero x intercept.

this plot of the given function, f(x) = |x+a| + b will be the basic absolute value graph i.e v shape, with vertex translated to (-a, b), instead of origin.

1-   if b is zero, the graph will have exactly one x-intercept, at x= -a

2- if b is positive, the whole graph will be above the x-axis, hence it will have no x-intercepts.

3- if b is negative, the graph will be below the x-axis, hence it will have two x-intercepts.

∴ the statement is sometimes true.