If someone could help me, I would really appreciate it! ~DO NOT ANSWER JUST FOR THE POINTS~
Part B: Observing Rhizobium with a Microscope

Sketch the bean nodule, labeling cells with and without Rhizobium, showing what you observed in the micrographs.

it marks things for degradation via the proteasome. it alters there celluar location.

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.