1,744 Answered Questions for the topic Functions

Functions

10/27/14

Evaluate the function.
use g(x)= 2x2+7x+1 to find  12-2[g(3)]
Follows • 1
Expert Answers •1
Functions

10/27/14

Evaluate the function.
Use f(x)=3x-5 and g(x)= 2x2+7x+1 to find    f(8)+g(-1) 
Follows • 2
Expert Answers •1
Functions

10/27/14

Evaluate the function.
Use g(x)= 2x2+7x+1 to find g(1)-9
Follows • 1
Expert Answers •1
Functions

10/27/14

Use f(x)=3x-5 to evaluate the function
f(x)=3x-5 find f(-6)+17
Follows • 3
Expert Answers •1
Functions

10/23/14

Perform the indicated operation
g(x)=-4x-2 f(x)= 3x-3 find g(-4x)- f(-4x) 
Follows • 2
Expert Answers •1

10/21/14

Is the function injective or surjective?
Determine whether the function f: NxN --> Z with f(x,y) = (1-x^2)[y/3] is either:   a) injective b) surjective       Injective function A function f is said to be one-to-one, or... more
Follows • 2
Expert Answers •1

10/21/14

Show that the function f: N * N - > N * N, f(x,y) = (x+y, 2x-3y) is one-to-one.
Show that the function f: N x N - > N x N, f(x,y) = (x+y, 2x-3y) is one-to-one.(A function f is said to be one -to -one , or injective , if and only if f ( a) = f ( b ) implies that a = b for... more
Follows • 2
Expert Answers •1

10/18/14

For the function, find the intervals where the function is increasing, decreasing, or constant.
The function is: R(x)= (x+2)2 if x<-1 -x if x≥-1 Thanks in advanced.
Follows • 1
Expert Answers •1

10/18/14

For the function below, determine a. f(x-1) b. f(x+a)-f(x) and c. f(x^2)
The function is 3√x +6(x=4) Thanks in advanced.
Follows • 2
Expert Answers •1
Functions

10/15/14

Perform the indicated operation.
g(n) = 4n-4 f(n) = 2n+1  find (3g+5f) (-3y) 
Follows • 2
Expert Answers •1
Functions

10/15/14

Perform the indicated operation.
f(t) = t-5 g(t) = 3t find 2f(1) - g (1) 
Follows • 1
Expert Answers •1
Functions

10/15/14

Perform the indicated operation.
g(t) = 4t-4  h(t) = 2t+1  find (g-h)(-9)
Follows • 2
Expert Answers •1
Functions

10/15/14

Perform the indicated operation.
g(x) = 3x-2  f(x)= 4x-1  find g(-7) - f(-7)
Follows • 2
Expert Answers •1
Functions

10/15/14

Auto insurance costs increase with each accident and traffic violation
What are the independent and dependent variables in the statement stated above out of number of accidents/violations and the cost of the insurance  
Follows • 2
Expert Answers •1

10/14/14

I need to build a rectangular enclosure for my pet pig. I only have 36 yards of fencing to use to build this rectangular pen. Perimeter Question!!
1) Using the fact that P=2l +2w, express the length L in terms of W. 2) Now express the Area of the rectangle as a function of the width of the rectangle. 3) If I use only 4 yards of fencing for... more
Follows • 2
Expert Answers •1

10/08/14

newspaper delivery. Samantha can deliver papers three times as fast as her sister, Elizabeth if they work together, it takes them 1 hour. how long would it take
How long would it take each to deliver the papers alone?
Follows • 1
Expert Answers •1
Functions Domain Range Problems

10/06/14

What values, if any, are excluded from the domain of the function?
1. f (x) = 3x + 2 3. G (x) = x² + 1 7. H (x) = x² - x + 1 9. f (x) = (2x - 5) / 3 13. F (x) = (x - 2) / 2   My math book, in the answer sheet says that "none" is the answer for all these... more
Follows • 3
Expert Answers •2
Functions Intervals

10/05/14

Find the intervals where the following functions increasing
a) y=x3 + e2x b) y=5xe-4x c) y=x2e-(x^x)
Follows • 2
Expert Answers •1
Functions

10/05/14

Let A be a set with n elements and B be a set with m elements. How many functions can you find from A to P ( B )?
Let A be a set with n elements and B be a set with m elements. How many functions are from A to P ( B )?
Follows • 2
Expert Answers •1
Functions

10/04/14

Funtion Problems
Suppose that the functions s and t are defined for all real numbers x as follows   s(x)=2x-5 t(x)=x-1   Write the expressions for (t+s)(x) and (t·s)(x) and evaluate (t-s)(1)
Follows • 2
Expert Answers •1
Functions

10/04/14

Function Problem
Suppose that the functions r and s are defined for all real numbers x as follows.   r(x)=2x3 s(x)=x2   Write the expressions for (r-s)(x) and (r·s)(x) and evaluate (r+s)(2)
Follows • 2
Expert Answers •1
Functions

10/02/14

Function Problem
Suppose that the functions g and h are defined for all real numbers x as follows.   g(x)=2x+3 h(x)=4x   Write the expressions for (g+h)(x) and (g-h)(x) and evaluate (g•h)(-1)
Follows • 2
Expert Answers •1
Functions Algebra 1

10/02/14

function help!!
Let f(x)=-5x-1 and g(x) =x^2-5 find (f*g)(-6)
Follows • 3
Expert Answers •2

10/02/14

A student gets paid to deliver newspaper after school. She earns $25 a day, plus an extra $0.75 for each newspaper
A student gets paid to deliver newspaper after school. She earns $25 a day, plus an extra $0.75 for each newspaper she delivers and $5 for each new customer she signs up for delivery. If d=days,... more
Follows • 2
Expert Answers •1
Functions

10/01/14

how much does each concert ticket cost
3 tickets equal $169.50 5 tickets equal $267.50 9 tickets equal $463.50 12 tickets equal $610.50 Total cost include service fee and only one time service fee
Follows • 2
Expert Answers •1

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.