1,744 Answered Questions for the topic Functions
05/03/17
Find an example of a set A and functions f :A→A and g:A→A such that f◦g=idA but g ◦ f ̸= idA
Find an example of a set A and functions f :A→A and g:A→A such that f◦g=idA but g ◦ f does not equal idA. I am not sure what idA means or an example for this
Follows
•
1
Expert Answers
•1
![]()
04/27/17
Multiple Choice
The question says to select all that satisfy the function, which is y= -4x - 3/4
A (1, 3 1/4)
B (-1, 2 1/4)
C (3, -12 3/4)
D (15 1/4, -4)
What does it mean, 'satisfy the function'? How...
more
Follows
•
2
Expert Answers
•1
![]()
Functions Math
04/18/17
Functions evaluations and piece-wise definitions
1. let f(x)=|x-1|a)evaluate f(-5),f(-2),f(1),f(4),f(7)b)rewrite f(x) without using absolute value symbols by employing a piecewise definition c)sketch the graph of f(x) over the domain -5≤ x ≤...
more
04/18/17
The table shows a relation between x and y.
x & y
-4 & 16
-2 & 4
0 & 0
2 & 4 ...
more
Follows
•
2
Expert Answers
•1
![]()
Functions
04/18/17
can someone help me to solve this
100,000,000-0.12(X + Y)]0.12+(0.03X + 0.05 Y) i need the solution thank you
Follows
•
1
Expert Answers
•1
![]()
Functions
04/12/17
how can i get the x-intercepts using this formula y= 2(x-1)^2-18
Find The co-ordinates of A and B of whic are x cordinates using the formula y=2(x-1)^2-18
Follows
•
2
Expert Answers
•1
![]()
Functions Math Question
If f(x) = (x-1)2, show that f(p+a) = f(1-p)
Please show me how to solve a problem as such, thank you!
Follows
•
2
Expert Answers
•1
![]()
04/10/17
Find the set of values of k for which f(x)= 3x^2 -5x -k is greater than 1 for all real x
This is a year 11 methods question about applying function notation.
Could someones please explain the question and then give me a working out for it?
Follows
•
2
Expert Answers
•1
![]()
Functions
04/03/17
can i have this one with steps please?
find f(x) and g(x) such that h(x)=( f o g)(x)
h(x) = 3/√7x+9
Follows
•
2
Expert Answers
•1
![]()
Functions
04/02/17
. f(g(⅕)) where f(x) = 1 -(1/x) and g(x) = 5x + (1/x) represent your answer as fractions if applicable, do not use mix numbers.
I have difficulties to solve this please can someone to solve this an i need the solution.
Follows
•
2
Expert Answers
•1
![]()
Functions
04/01/17
Can I have these two with steps please?
1) Find (f+g)(1) when f(x)=x+6 and g(x)=x-3
2) For (x)=x^2-4 and g(x)=2x+3, what is the domain of f/g?
Follows
•
2
Expert Answers
•1
![]()
Functions
03/30/17
Let q(x) be the function defined by q(x) = 4 − x2.
Let q(x) be the function defined by q(x) = 4 − x2. (a) Write down the values of q(−2), q(0), q(1) and q(2). (b) What is the range of q(x)? (c) Graph q(x) in the same diagram you used for the graph...
more
Follows
•
2
Expert Answers
•1
![]()
Functions Linear Equations
03/30/17
Let p(x) be a linear function such that p(−2) = 0 and p(1) = 3. (a) Graph the function p(x) labelling the important points. Note. You will be using the same axe
Let p(x) be a linear function such that p(−2) = 0 and p(1) = 3. (a) Graph the function p(x) labelling the important points. Note. You will be using the same axes to graph another function in the...
more
Follows
•
2
Expert Answers
•1
![]()
03/28/17
Is f odd, even, or neither?
Let f(x) = (3x2-9)/(x2-1)(a) What is the domain of f?(b) Is f odd, even, or neither?
Follows
•
2
Expert Answers
•1
![]()
Functions Math
03/23/17
Which of the following relations is not a function?
A.
(-6, 4), (2, 3), (-3, 1), (9, 2)
B.
(9, 4), (-3, 2), (2, 1), (-6, 2)
C.
(-3, 4), (2, 2), (9, 1), (-6, 5)
D.
(2, 4), (-3, 2), (2, 1), (-6, 2)
Follows
•
2
Expert Answers
•1
![]()
03/20/17
Find a linear function M(t) which gives the mass of the gas (in grams) which remains after t minutes.
Scientists are conducting an experiment with a gas in a sealed container. The massof the gas is measured, and the scientists realize that the gas is leaking over time in a linearway. Its mass is...
more
Follows
•
2
Expert Answers
•1
![]()
Functions
03/20/17
A window is in the shape of a square with a side of length s, with a semicircle of diameter s, adjoining the top of the square.
Write the total area of the window W as a function of sHint. Start with a formula for the area of a square and the area of a circle.
Functions
03/20/17
Functions and Inverse
Given that g(x)=4/x , x is not equal to 0 and fg(x)=2x+3 find the function f. This is composition functions/
Follows
•
2
Expert Answers
•1
![]()
Functions
03/14/17
the demand function for a small computer company’s premier laptop is 𝑞=−𝑝6+400, where p is the price (in dollars) per unit when q units are demanded (per week
a) Solve for p to determine the price function p(q): b) Using the fact that Revenue = price x quantity, determine the revenue function R(q): c) Find the q-coordinate of the vertex, for the parabola...
more
03/10/17
Function word problem please HELP
The Celestial Bakery currently sells an average of 750 wedding cakes per month and charges an average of $200 per cake. Market research indicates that for every $5 increase in the price of a cake,...
more
Follows
•
2
Expert Answers
•1
![]()
Functions
03/09/17
Equating two functions to find value of x ?
y=sinx , y= (2/pi)x
What is the process of doing this ?
Follows
•
3
Expert Answers
•2
![]()
![]()
Still looking for help? Get the right answer, fast.
Ask a question for free
Get a free answer to a quick problem.
Most questions answered within 4 hours.
OR
Find an Online Tutor Now
Choose an expert and meet online. No packages or subscriptions, pay only for the time you need.
