Cynognathus was a mammal-like reptile that lived on land millions of years ago. Fossils of Cynognathus are found only in South Africa and South America. Which statement most likely
explains this fact?
Cynognathus would migrate across oceans in search of food.
O The movement of tectonic plates has caused the surface of Earth to change.
The conditions for fossilization only existed in South America and South Africa.
o Cynognathus had two distinct populations on different continents but lived nowhere else.

the correct option is option 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.