Question 8 (6 marks) Consider the function f: [-2, 2] shown in the diagram. R whose...
2 er Let I be an interval of R, and define the function f :I→ R by f(x) 1 +e2z or every z EZ. (a) Find the largest interval T where f is strictly increasing. (b) For this interval Z, determine the range f(T) (c) Let T- f(I). Show that the function f : I -» T is injective and surjective. (d) Determine the inverse function f-i : T → 1. (e) Verify that (fo f-1)()-y for every y E...
Let f : R → R , f ( x ) = x^2 ( x − 3). (a) Given a real number b , find the number of elements in f ^(-1) [ { b } ]. (The answer will depend on b . It will be helpful to draw a rough graph of f , and you probably will need ideas from calculus to complete this exercise.) (b) Find three intervals whose union is R , such that f...
Assume f is a function whose domain is the interval (-3,3, whose range is the interval (-4,4), and whose graph is the figure below. 4 3 ܝ Let g be given by 8(x) = 2 - (1 - 1). 13pts/(a) Find the domain of g. 13pts/(b) Find the range of g. [4pts/(c) Sketch the graph of g.
2 2. For function h(x) - a. Find (-1) b. Find the domain of h(x), write your answer in set-builder notation. 2 c. For function (x) h'(x) and state the domain and range of h'(x). 3. a. What is the relationship between the graph of a function and the graph of its inverse? b. Graph the function (x) = V1 – 3 and its inverse on the same coordinate system. Determine at least 3 points on each graph. Label each...
Question 1 The functions f(x) g(x) and h(x) are defined as follows: f(x) = e* XER g(x) = x x 20 h(x) = 2x + 1 XER [3 marks] Find fg(x) and state its domain and range Find hf (x) and state its domain and range Find hº(x) and state its domain and range __[3 marks] (1111) [3 marks] WA (b) The figure below shows the graph of y=-x-shifted to four new positions. Write an equation for each new graph....
2. Consider the function f(x) = ln (x+4) [6-6+8-16 marks] Note: f'()1")*** 3(4-2) a) On which intervals is f(x) increasing or decreasing b) On which intervals is f(x) concave up or down? c) Sketch the graph of f(x) below Label any intercepts, asymptotes, relative minima, relative maxima and infection points
Question 2 The function r) is defined by 3(x + 1) 1 f12r + 71-4 1+4 () (111) 13 marks Show that f(x)= [4 marks) Find (3) Find the domain off- [2 marks] Given that g(x) = In(x + 1) Find the solution of r if fg(x) = 5, by leaving your answer in terms of e exponential function) [4 marks) (b) Sketch the graph of the function, In)-1-cosx). not by plotting points, but starting with the graph of a...
discrete Math
PLEASE CIRCLE ALL THE FINAL ANSWERS
(1 pt) Consider the function f: R → R defined by f(x) = x2 + 8. Let I = (-6,3]. Describe the following sets as unions of disjoint intervals. (Hint: sketch the graph first.] f(1) = im(f) = where im(f) denotes the image (or range) off. [Syntax: use +:Inf for plus/minus infinity and the letter U for unions. For example: (-Inf-20]U(-0.5,1.5]U(3.5, Inf).] (1 pt) Consider the function f: R → (7,00) defined...
Consider the following functions, where I and J denote two subsets of the set R of real numbers. f: R→R x→1/√(x+1) f(I,J): I→J x→ f(x) (a) What is the domain of definition of f? (b Let y be an element of the codomain of f. Solve the equation f(x)=y in x. Note that you may have to consider different cases, depending on y. (c) What is the range of f? (d) Is f total, surjective, injective, bijective? (e) Find a...
Part C: Communication (20 marks) 1. Let f(x) = x + 3 and g(x) = x2 + 8x + 15. (5 a) Determine an equation for the combined function Y = F(X) marks) ico g(x) nobela bom a) State the domain and range (5 marks) 1200 to b) Sketch a graph of the function (5 marks) 410 e add (a bor AS PAGE 5 DA