Which of the following is(are) the solutions(s) to

ANSWER

EXPLANATION

The given absolute value equation is

This implies that, either

Or

Group similar terms;

or

Simplify:

or

Solve for x.

Check for extraneous solutions.

Also,

This is an extraneous solution.

The only solution is:

1 number

if we use a graphing calculator, there is only one such number that satisfies the conclusion of the mean value theorem, that is, a number such that

where the right-hand side is the average rate of change of f on the interval [0.5,0.75], which is the slope of the secant line.

in the attached graph, the black line is the secant line which has its slope as the average rate of change of f on [0.5,0.75], while the orange line is the only tangent line to the graph of f in the interval that satisfies the mvt conclusion.