Administrators want to determine whether students learn best and face-to-face or online classes.
What would be the dependent variable for this experience?
A)whether the face-to-face class uses canvas or not
B) whether the online class uses discussion boards or not
C)% of students who pass the class
D) modality: whether the class is online or face to face

answer; i believe the correct answer is (data); /// good luck

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.

answer; ///progressive relaxation;