Which of the following is not a characteristic of mitochondria?

a. mitochondria are considered to be the "powerhouses" of the cell.

b. mitochondria produce most of the energy needed by the cell.

c. mitochondria capture energy from sunlight to make food for the cells.

d. mitochondria are rod-shaped organelles found in very active cells.

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.