278 Answered Questions for the topic Function

Function

04/02/17

can someone help me to solve this and also explanation. f(g(3)) where f(x) = x -1 and g(x) = 2x + (1/x)
 I didn't get it.
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Expert Answers •1
Function

04/01/17

find f(x) and G(x) such that h(x)= (f0g)(x).
h(x)=3/sqrt 7x+9
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02/12/17

Find the amplitude and the period of the function?
y=-5 sin(2x)
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Expert Answers •3
Function Distance

01/30/17

form a function. distance d from p
Let P=(x,y) be a point on the graph of y=x^2-3 (*)Express the distance d from P to the origin as a function of x.  
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01/29/17

How do you determine if a function is invertible? How do you find the inverse of an invertible function?
Give an example.
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01/29/17

Using a one-to-one function encode the word logarithms
A B C D E F G H I  J    K   L   M 1 2 3 4  5 6 7 8 9 10 11 12 13N   O   P   Q    R   S   T   U   V   W  X   Y   Z 14 15 16 17 18 19 20 21 22 23 24 25 26
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01/22/17

How do you determine if a function is invertible? How do you find the inverse of an invertible function? .
Give an example.
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Function Word Problem Height

01/14/17

Word Problem (use radians)
  The function h(t) = 25 - 10cos [(π/3) t] gives the height above the ground, in feet, of a passenger on a Ferris wheel t minutes after the ride begins. During one revolution of the Ferris wheel,... more
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01/13/17

Find the exact value of the trig function below.
  cos(x+y) if sinx=12/13, cosx=5/13, siny=8/17, and cosy=15/17
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Function Trigonometry

01/12/17

Find the exact value of the trig function below.
sin(x-y) if sinx=7/25, cosx=24/25, siny=3/5, and cosy=4/5
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Function Variable Radians

01/11/17

Find the matching value for f
Find the matching value for f in the function below. The independent variable is in radians.   ƒ(π/4) = cos(cos-1x)
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01/09/17

Give an example of a mathematical function and identify its domain and range. How can you verify that it is a function?
 just need an example of a mathematical function and the domain and range of the function. how do you verify its a function? 
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Function

01/02/17

If (5y(x+3)/(x+5)=3y, x is not equal to -5, and y is not equal to 0, then (x+5)/(-x-3)=
A) -5/3   B)-3/5   C)3/5   D)5/3
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12/30/16

inverse function problem
Give the equation of a function whose inverse is also a function. Then, draw a sketch of a non-function whose inverse is also a non-function 
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11/30/16

Determine the domain and range of the function?
f(x)=3x - 2 + 1
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Function Cosine Sin

11/17/16

Sin and Cos functions
Without a calculator, find the exact value of:   a) sin(120)   b) cos(-3Π/4)
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Expert Answers •2

11/13/16

Determine, without graphing whether the function has a maximum value or a minimum value and then find the value?
f(x)= 4x^2-8x+3
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Function Calculus 1

11/13/16

Suppose that f is continuous in [a,b] and f'(x) exist and never be zero in (a,b). If f(a) and f(b) have opposite signs,
show that the equation f(x)=0 has one and only one solution in (a,b)
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11/12/16

Solve the following word problem.
A movie theater is reordering popcorn buckets for the concession stand. The cost for buckets (b) decreases if they are purchased in bulk. Additionally, the movie theater gets a $2.00 discount on... more
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11/12/16

Solve the following word problem.
The speed (in feet per second) of a ball tossed up in the air can be represented by the function v(t)=32|t|+5 where t is time in seconds. Based on this function, at what time would the speed of the... more
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Function Functions

11/12/16

Calculate the correct matching value for the function below.
For f(x) = {-3x2+2, x<-1}               {x+7, x≥-1}        and x = -2, find y.
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Function

11/11/16

Find y for the function
For f(x)=3|2x-5| and x=1, find y.
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Expert Answers •2
Function Functions

11/11/16

Calculate the correct matching value for the function below.
For f(x) = {-3x2+2,  x<-1}                  {x+7,  x≥-1}             and x = -2, find y.
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11/09/16

Change the following function to a power function in the form y=ax^n. Use fractional exponents if necessary.
y=6/√x7
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11/06/16

Find the value of each function below. Estimate any irrational answers to 2 decimal places.
y(3)=750e0.16x
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