28 Answered Questions for the topic Relations And Functions

Relations And Functions Algebra 2

02/27/21

Find each function value: (fg)(-1)

Let f(x )=x^2 +2 and g(x )=1−3x. Find each function value: (fg)(-1)
Relations And Functions

07/07/18

Rate of change of 3 variables

Hello Experts, I am trying to find the CPU performance of different CPU models and trying rate each cpu models.i have run our standard script and found the run time for all the cpu models for every... more
Relations And Functions Algebra 2 Vertical Line Test

06/28/18

How do I find out if this equation is a function or not?

The question is  Determine if each relation is or is not a function. And the questions are 1. y=2x2-3x+1 2. y=3/2x-4 3. y=-3x4+x3-2x+1 I would like to know the explainations. From the content... more
Relations And Functions Mathematics

06/24/18

Find the range .

f(x)=1⁄√9-x² Domain=  (-3,3) Sol.1⁄√9-(±3²)=1/0=Not defined 1/√9-(±2²)=1/√5 1⁄√9-(±1²)=1/√8 1⁄√9-0=1/√9=1/3 Then ,why range is =[1/3,∞) ? Why the answer is ≠[1/3,1/√5]?  
Relations And Functions Mathematics

06/24/18

Find domain and range:

Question 1 :- f(x)=1⁄√9-x²Question 2 :- f(x)=√x²-4
Relations And Functions

05/27/18

f(x)=2x+1. Draw y=f(x), y=f^1(x) and y=x on the same axes.

f(x)=2x+1   a. was to find f^1(x) inverse, which I got (y-1)/2   b. Draw y=f(x), y=f^1(x) and y=x on the same axes.  There is a graph paper provided for the question.
Relations And Functions Domain And Range Modulus

05/12/18

Domain of the function f given by f(x) = 2 – |x – 5| is

It is taken from the chapter "relations and functions" from class 11th. This questions also have options i.e.,  a) R^+ b) R - {5} c) R - {-5} d) R 
Relations And Functions

02/28/18

Rewrite the relation as a function of x.

3x2 +2y=2x-6y
Relations And Functions

02/14/17

Determine g(x-1) for the following function. g(x)=-4^2+4x-5

Determine g(x-1) for the following function.   g(x)=-4^2+4x-5
Relations And Functions

01/04/17

10+4(3+2)+5+(12/6)

Need help getting the answer bc I can't seem to find the right one
Relations And Functions Discrete Math Discrete Mathematics

12/12/16

Composition of relations on the real numbers.

Here are four relations defined on R, the set of real numbers:R1 = { (x, y): x ≤ y }R2 = { (x, y): x > y }R3 = { (x, y): x < y }R4 = { (x, y): x = y } Describe each relation below. (Hint:... more
Relations And Functions

09/19/16

Graph each function

f(x)=4x-6 I thought you would use y=mx+b to graph this. Not completely sure about this. If someone could help me with this problem that would be great.
Relations And Functions Math Algebra

03/28/16

Functions and linear relations

The function f(x) = 3 - 2x^2 , has a domain {-6, -4, 0, 2, 5} which of the following is an element of the range of the function? A.) 35 B.) 27 C.) 1 D.) -29
Relations And Functions Math Algebra

03/28/16

P(x) = 5x + 2. If P(b) = 6, then b= ?

P(x) = 5x + 2. If P(b) = 6, then b= ?
Relations And Functions Math Algebra

03/28/16

the function of f(x) = 6 - 2x has a domain of {0, 2, 4, 6, 8}

the function of f(x) = 6 - 2x has a domain of {0, 2, 4, 6, 8} which of the following is NOT an element of the range of the function, A.) -10, B.) 2, C.) 4, D.) -6.
Relations And Functions Discrete Math Functions

02/21/16

how many unique functions?

I am not sure how to answer this questionLet S = {1, 2} and T = {a, b, c}.How many unique functions are there mapping S → T? (Is it 2? because (1,a) and (2,b) ) How many onto (surjective) functions... more

09/22/15

We have to recurrence relation an = 2an-1 - an-2. Find a2 and a3 if

We have to recurrence relation an = 2an-1 - an-2. Find a2 and a3 if:   a) a0 = 1 og a1 = 0?   b) a0 = 0 og a1 = 1?   c) a0 = 1 og a1 = 2?
Relations And Functions Discrete Math Sequence Sequences

09/22/15

Solve this recurrence relation and find a2 and a3?

We have to recurrence relation an = 2an-1 - an-2. Find a2 and a3 if:   a) a0 = 1 and a1= 1? b) a0 = 0 and a1 = 0?  
Relations And Functions

08/07/15

what is the range of f(x) = 1/(9-x^2)^1/2

chapter = relations and functions '^' stands for 'raised to ' or 'to the power'
Relations And Functions

06/15/15

Relations and Functions

f(x^2)   for f(x)=√x+4 +6
Relations And Functions Graphing Inverse Functions

04/20/15

Relations and Inverse Functions

So I am trying to study notes and do homework for my math class. We are studying Relations and Inverse functions. I know how to go from a Relation to a Inverse function and when i am given the... more
Relations And Functions

03/31/15

In mathematical relations such as reflex, symmetric, transetive and so on. Does it need to occur once or must it apply to all values?

I want to know if different scenarios in relations must satisfy all the value in the relation. In mathematical relations, a given set relation is reflexive if all the elements in the set exhibit... more
Relations And Functions

09/21/14

Write an equation of the line that passes through the point (-7,2) and is both parallel and perpendicular to y=-3

equation that passes through point (7,2)  and is both parallel and perpendicular to y= -3
Relations And Functions

04/23/14

class 11 Relations and functions

Let f be a function defined by f:x→5x2  + 2 : x∈R i) Find the image of 3 under f. ii)Find f(3).f(2) iii)Find x such that f(x)=22   Please response to this question fast. i have day after... more
Relations And Functions

05/11/13

The area A of a parallelogram is the product of the base b and the height h Formula to express given relation?

Formula to express the given relation.  The area A of a parallelogram is the product of the base b and theheight h

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