. Let f and g be the functions defined by f ( x ) √8+x x and g ( x) √ 9 + x . Find the functions
(i) (f – g)(1)
(ii) ( f o g)(-7)
(iii) domain of f÷g

b

Step-by-step explanation:

i think c. but don't trust it.

step-by-step explanation:

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.