As you observe an unknown cell under a microscope, you make the following observations.

There is one large, irregular structure that occupies about half the cell.

The cell has several small, green, circular objects inside it.

It has a medium-sized circular structure that appears to be a nucleus.

There is a thick, rigid structure that surrounds the cell.

What type of cell are you observing?

A: an animal cell

B: a bacterium

C: a protist

D: a plant cell

i think the answer is b.

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.