1,748 Answered Questions for the topic Functions
03/14/19
Find a polynomial with degree n=3, with zeros of 1 and 5i. Where f(-1) = -104
This is as far as I got(x-1)(x+5i)(x-5i)(x-1)(x^2+25)x^3-x^2+25x-25f(-1) = (-1)^3 - (-1)^2 + 25(-1) - 25 = -1 - 1 - 25 - 25 = -52 this does not equal -104, but is exactly half, what am...
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Functions Quadratics
03/12/19
Finding quadratic equation
The braking distance of a car travelling at 100km/h is 40 metres. The formula for braking distance (d) in metres is d=kx2 where k is constant and x is speed in km/h. a) Find the value of k
Functions
03/12/19
elow is the graph ofy=h(x). Show in steps how to draw the graph ofy=−2h(x+ 3) + 4.Where will each point wind up?
Functions Algebra 2
03/10/19
Doubts in functions
f(x) = 2x -1 , g(x) = 1/x, x not equal to 0. g)x) = 1/x, x not equal to 0, h(x) = 2^xSimplify hh^-1 (x)
Functions Algebra 2
03/10/19
Doubts in Functions
Use two of the functions f(x), g(x) and h(x) to find the composite function which is equal to 2^(x+1) -1
Functions Calculus
03/08/19
Approximately, what was the value of Mr. Delaney's car 5 years after its purchase?
The value of Mr. Delaney's car x years after it's purchase is given by the function V(x)=15000(0.87)2.
Functions Algebra 2
03/07/19
Find two functions f and g such that h(x)=(f o g) (x). h(x)=(x-6)^6
Functions Algebra 2
03/06/19
If f(2)= -2, f-1(6)=10 and f-1(1)=0, what is the function?
Determine if each given example represents a linear, quadratic, absolute value, or exponential function. Explain.
y = 2x — 7
f(x) = x2 — 8
p(x) = 3(5)x
y = |x + 4|
Functions
03/01/19
f(x) = 2x − 7. solve f(a + h) =
Functions Algebra 1
02/26/19
Determine whether the function shown is constant, linear, quadratic, or none of these. m(x) = –|x – 6| + 9
02/23/19
Finding values with a polynomial function
Knowing the following polynomial function:y = 18x4 -813 +109x2 -26x -24Find the value of x in which y is 1040
A sequence is defined recursively by the following rules:
A sequence is defined recursively by the following rules:f(1)=3f(n+1)=2⋅f(n)−1Which of the following statements is true about the sequence? Select all that apply.f(5)=33f(3)=10f(4)=18f(6)=66f(2)=5I...
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Functions Algebra 1
02/22/19
The function rule c(t)=0.20t is a model for the cost c in dollars of a telephone call that takes t minutes to complete. Which represents another way to write the function rule?
Functions Algebra 1
02/22/19
Which value of k will allow the following set of ordered pairs to represent a function? {(3,5), (2,6), (k,8), (1,5)}
Functions Algebra 1
02/22/19
What is the value of f(x) when x=400?
02/20/19
What is 2f(x) times 3x?
Functions
02/17/19
Where x is months and y is the amount left in the account y=-18x+550
Functions Calculus
02/14/19
Adding and subtracting Function
F(x) = 3x-2 and g(x) = 2x+1, find (f - g)(x)
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