A city in the southwestern United States has finally received enough precipitation to emerge from a 3-year drought. The drought had a significant effect on agricultural activities in areas surrounding the city, which resulted in high food prices during the drought.

A scientist in the city wants to design a plan that will help reduce the impacts of future droughts that may occur in the area. Which of the following would most likely be a part of the scientist's plan?
A.
encouraging the local population to buy more bottled water
B.
building levees along local rivers to prevent overflow
C.
building dams on local rivers to create water reservoirs
D.
using only water soluble pesticides in agricultural areas

a. decomposes use carbon from dead organisms as fuel for cellular respiration, returning carbon dioxide back into the atmosphere.

d. organisms have cells with different shapes and functions.

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.