Which of the following is the best indication for volume expansion after resuscitative efforts that included intubation, chest compressions, and iv epinephrine?
a. the babies heart rate rapidly increased to 120 bpm with epinephrine, but her pulses seem weak
b. the babies heart rate remains 50 bpm after resuscitative efforts and pulses are weak
c. the babies heart rate is 120 bpm beats per minute after resuscitative efforts and there is a history of extensive vaginal bleeding during labor
d. the baby’s heart rate is 120 bpm after resuscitative efforts, but she is very pale

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.