1,744 Answered Questions for the topic Functions

Functions Math Help

11/18/16

What is the value of h(g(3))?

A function g satisfies g(5)=3 and g(3)=0, and a function h satisfies h(3)=-2 and h(0)=5. What's the value of h(g(3))?

11/18/16

If g(x)= -2(x^2-6x-12)+3(k-x) and g(x) is evenly divisible by x, then what's the value of k?

If g(x)=-2(x2-6x-12)+3(k-x) and g(x) is evenly divisible by x, then what's the value of k?
Functions

11/17/16

Is the function a polynomial function

f(x)= 7-x^4/6

11/15/16

Rational Function

given f(x)= t3-2t2-8t/t2-4  find the domain, asymptotes, holes and intercepts.   I know that to find the x intercept you set y=0 and solve for x but I am unsure how to isolate x when the... more

11/13/16

A cubic function is a polynomial of degree 3; that is it has the form f(x)=ax^3+bx^2+cx+d, where a does not equal to zero.

(a) Show that a cubic function can have two, one, or no critical number(s). Give examples and sketches to illustrate the three possibilities.(b) How many local extreme values can a cubic function... more

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

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
Functions Function

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.
Functions Trigonometry Cosine

11/11/16

Cosine function

a cosine function has an amplitude of 1/3, period of pi/3, horizontal shift of -2pi, and vertical shift of -3.  What is the y-value of the negative function when x= pi? 
Functions Function

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.
Functions

11/09/16

is the functiom f(x) = -x^3 + 5x even, odd or neither?

how can you tell if a function is even or odd or neither?
Functions

11/08/16

what is the value of f (3) if: f(0)=-1, f(2)=3, f(5)=9, f(6)=1.

the function f (x) is linear
Functions

11/08/16

how many of each type of pie were sold?  

A new bakery in a small city sells banana chocolate pies for $6.99 and pecan pies for $10.99.  The total number of pies sold on a busy Friday was 36. If the amount collected for all the pies that... more
Functions Algebra

11/06/16

Polynomial Function

Determine the value of the constant k so that x-2 is a factor of f(x)= 2x4+kx3+4x+6      
Functions Derivatives

11/05/16

Increasing and decreasing functions

F (x)=(12x-3)e^x
Functions Math Help

11/04/16

What's the value of x?

If f is a linear function and f(-2)=11, f(5)=-2, and f(x)=4.3, what's the value of x?
Functions

11/01/16

Minimum, maximum critical points of functions

Determine intervals on which the function is increasing, decreasing, and which critical points are a relative minimum, maximum.    Given function: h (x)= 2x-8/ x+7

10/27/16

Evaluate for the indicated value of the independent variable.

If f(x)=4x-2 and x(t)=√(t+2), find f(x(7))
Functions

10/27/16

Evaluate the function below for the indicated value of the independent variable.

If f(x)=-2x+1 and x(t)=t-3, find f(x(2))   Please help I don't understand how to go about solving this

Find the maximum height of a model rocket launch algebraically.

A model rocket is launched with an initial velocity of 120 ft/sec from a height of 80ft. The height of the rocket t seconds after it has been launched is given by the function s(t)=-16t^2 +120t +... more
Functions

10/24/16

given by the function s(t)=-16t^(2)+60t+80. determine the time at which the rocket reaches its maximum height and find the maximum height

a stone is thrown directly upward from a height of 30ft with an intitial velocity of 60 ft per second. the height of the stone t seconds after it has been thrown is given by the function... more

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