53 Questions for the topic Functions And Domain

08/28/18

#### A sales person is paid a weekly salary of $760, plus a commission of 7.5%... Math Functions problem

A sales person is paid a weekly salary of $760, plus a commission of 7.5% of all her sales for the week. Express her weekly income in terms of the weekly sales amount. Is this a function? How do...
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07/16/18

#### 14.Functions f and g are defined by f(x) = x 2 -2 x + 1 and g(x) = (x - 1)(x + 3) ,find (f / g)(x)

Function and domain

04/15/18

#### Quotient of two functions

Suppose that the functions f and g are defined as follows.
f(x)=x-2 g(x)=x-2/x-8
Find f/g. Then, give its domain using an interval or union of intervals. Simplify your answers.

02/11/18

#### if the function goes out of its domain while calculating the limit of that function, can we say that the limit does not exist?

example:
Calculate the limit of a function, while x approaches -1
f(x)=x+arccos(x/1-x^2)-1/(x^2)*e^(1/2*x^2)
//the function arccosX (X is a real number) is defined for X∈[-1,1], but in this...
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01/08/18

#### Let X : [0,1] → R. Find the inverse images of all intervals [a,b] for X(x) = 2 *1

Let X : [0,1] → R. Find inverse images of all intervals [a,b] for X(x) = 2 *1[0,½) (x) + 3 * 1[½,1] (x)
Can someone please provide a solution to this

11/07/17

#### help with function tables using domain

Make an input output table for the function y=-9.1x+7.22 using the domain -2, -1, 0, 1, 2 then state the range

09/19/17

#### For the function G defined by G(x) = -5x2 + 5x - 1, evaluate G(-13).

I do not know hoe to do this problem

05/09/17

#### If f(x) function with domain [0.infinty) and g(x) is (1-x)/floor(x) what is the domain of fx/gx

If f(x) function with domain [0.infinty) and g(x) is (1-x)/floor(x) what is the domain of fx/gx

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?

01/24/17

#### given f(x)=x-5 and g(x)=lx+7l, which of the following is the domain of the quotient function f/g?

Given f(x)=x-5 and g(x)=lx+7l, which of the following is the domain of the quotient function f/g?

01/19/17

#### cylindrical 12m and a height of 60m is filled to a height of h.the volume v of water is given by the function (h)=144.solve the domain,ind,dep of the function.

Their are 2 answers.
A. The independent variable is V; the dependent variable is h. The domain is D=?
B. The Independent variable Is h; The dependent variable is V. The domain is D=?
Show...
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11/16/16

#### If f(t) = 2t – t2, what is (f(t + h) – f(t)) / h?

This is a question in college algebra i would like to understand. Functions.

07/29/16

#### Identifying functions from their equations

Please explain in detail how to solve this problem.thank you so much! Identifying functions from their equationsDecide whether each relation defines y as a function of x. Give the domain:y= 5/x-1

05/11/16

#### the solution of the inequality [(3^x-4^x).ln(x+2)]/[x^2-3x-4] is less than or equal to zero?

I would like a hint about solving exponential and logarithmic functions while finding domains?

02/20/16

#### Given the function f(x)=1/4x-2, what domain value corresponds to a range value of -5/3?

A. -29/12
B. 4/3
C. 7/3
D. 29/12

01/02/16

#### Functions Maths

g(x) = 1/(x − 2) + 5 (x > 2). The domain has been changed from x can't equal 2 to x > 2
(i) Sketch the graph of g, using equal scales on the axes, showing anyasymptotes as dashed...
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12/07/15

#### functions and domain

f(x)=(1-x)/7x, g(x)=1/(1+7x)
Find (f*g)(x) and its domain
Find (g*f)(x) and its domain

11/26/15

#### after how much time, to the nearest minute, will the cost of plan a be equal to the cost plan b

Plan a charges $11 a month and $0.21 per minute.plan b charges $20 a month and $0.10 per minute

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