1,748 Answered Questions for the topic Functions
05/08/17
Functions f(x) and g(x) are described as follows
(This question is on my study guide for the final exam and I do not fully understand how to solve this. Can somebody please show me how to so I can be better prepared for my exam?)
:-)
F(x)...
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Functions
05/07/17
Let f(x) = √x+2 and g(x) = x^2 - 2, then find f ○ g and g ○ f
Would appreciate a step by step for this problem so I truly understand it.
Functions Quadratic Equations
05/06/17
How many seconds after it was hit did the ball hit the ground, to the nearest second?
The following function gives the height, h metres, of a batted baseball as a function of the time, t seconds, since the ball was hit.
h = -6(t-2.5)^2 + 38.5
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Functions
05/04/17
Calculate the indicated value of each function.
f(x)=–11x^2–7x+14. Find f(10).
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05/03/17
Find an example of a set A and functions f :A→A and g:A→A such that f◦g=idA but g ◦ f ̸= idA
Find an example of a set A and functions f :A→A and g:A→A such that f◦g=idA but g ◦ f does not equal idA. I am not sure what idA means or an example for this
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04/27/17
Multiple Choice
The question says to select all that satisfy the function, which is y= -4x - 3/4
A (1, 3 1/4)
B (-1, 2 1/4)
C (3, -12 3/4)
D (15 1/4, -4)
What does it mean, 'satisfy the function'? How...
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Functions Math
04/18/17
Functions evaluations and piece-wise definitions
1. let f(x)=|x-1|a)evaluate f(-5),f(-2),f(1),f(4),f(7)b)rewrite f(x) without using absolute value symbols by employing a piecewise definition c)sketch the graph of f(x) over the domain -5≤ x ≤...
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04/18/17
The table shows a relation between x and y.
x & y
-4 & 16
-2 & 4
0 & 0
2 & 4 ...
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Functions
04/18/17
can someone help me to solve this
100,000,000-0.12(X + Y)]0.12+(0.03X + 0.05 Y) i need the solution thank you
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Functions
04/12/17
how can i get the x-intercepts using this formula y= 2(x-1)^2-18
Find The co-ordinates of A and B of whic are x cordinates using the formula y=2(x-1)^2-18
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Functions Math Question
If f(x) = (x-1)2, show that f(p+a) = f(1-p)
Please show me how to solve a problem as such, thank you!
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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?
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Functions
04/03/17
can i have this one with steps please?
find f(x) and g(x) such that h(x)=( f o g)(x)
h(x) = 3/√7x+9
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Functions
04/02/17
. f(g(⅕)) where f(x) = 1 -(1/x) and g(x) = 5x + (1/x) represent your answer as fractions if applicable, do not use mix numbers.
I have difficulties to solve this please can someone to solve this an i need the solution.
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Functions
04/01/17
Can I have these two with steps please?
1) Find (f+g)(1) when f(x)=x+6 and g(x)=x-3
2) For (x)=x^2-4 and g(x)=2x+3, what is the domain of f/g?
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Functions
03/30/17
Let q(x) be the function defined by q(x) = 4 − x2.
Let q(x) be the function defined by q(x) = 4 − x2. (a) Write down the values of q(−2), q(0), q(1) and q(2). (b) What is the range of q(x)? (c) Graph q(x) in the same diagram you used for the graph...
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Functions Linear Equations
03/30/17
Let p(x) be a linear function such that p(−2) = 0 and p(1) = 3. (a) Graph the function p(x) labelling the important points. Note. You will be using the same axe
Let p(x) be a linear function such that p(−2) = 0 and p(1) = 3. (a) Graph the function p(x) labelling the important points. Note. You will be using the same axes to graph another function in the...
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03/28/17
Is f odd, even, or neither?
Let f(x) = (3x2-9)/(x2-1)(a) What is the domain of f?(b) Is f odd, even, or neither?
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Functions Math
03/23/17
Which of the following relations is not a function?
A.
(-6, 4), (2, 3), (-3, 1), (9, 2)
B.
(9, 4), (-3, 2), (2, 1), (-6, 2)
C.
(-3, 4), (2, 2), (9, 1), (-6, 5)
D.
(2, 4), (-3, 2), (2, 1), (-6, 2)
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03/20/17
Find a linear function M(t) which gives the mass of the gas (in grams) which remains after t minutes.
Scientists are conducting an experiment with a gas in a sealed container. The massof the gas is measured, and the scientists realize that the gas is leaking over time in a linearway. Its mass is...
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Functions
03/20/17
A window is in the shape of a square with a side of length s, with a semicircle of diameter s, adjoining the top of the square.
Write the total area of the window W as a function of sHint. Start with a formula for the area of a square and the area of a circle.
Functions
03/20/17
Functions and Inverse
Given that g(x)=4/x , x is not equal to 0 and fg(x)=2x+3 find the function f. This is composition functions/
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