Questions on Algebra: Functions, Domain, NOT graphing answered by real tutors!

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Algebra: Functions, Domain, NOT graphing

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Question 94994: Ok, My son came home from school today with Math homework. He is in Algebra 1 and they have requested he have a TI-83. I intend to buy this for him but I haven't yet and he has homework tonight. The teacher only explained how to do the problem on the calulator not on paper. I know it can be done on paper but I really do not remember how to do it. I looked in his math book and the book only goes to Chapter 12 and the worksheet is for Chapter 13. I can't figure out how to solve these problems and I'm hoping for some help. He only has to do certain problems so I'm going to send you one of the ones he doesn't have to do.
The question reads as follows:
Solve ecah equation if the domain is {-2, -1, 1, 3, 4}.
The question is as follows:
y=4 - 5x
If you could just show me how to work these I can help him with the ones he has to turn in tomorrow.
Thank you.
Click here to see answer by samuenkadi(3)

Question 95363: How do you write an equation in slope-intercept form of the line satisfying the given conditions find the coordinates of the midpoint of the segment whose endpoints are (-2, 14) and (3, -9)
Click here to see answer by checkley71(8405)

Question 95393: 1. f(13)
2. f(f(2)+f(3))
3. (f(1+4))/(f(1)+4)-(1/4)(4/f(1))
Click here to see answer by scott8148(3385)

Question 95560: How do you solve the equation m - 2n = 9 if the domain is { -1, 0, 5}?
Please help i do not understand how to do this problem?
Click here to see answer by stanbon(26297)

Question 95653: Please help me with this problem:
Let f be the function defined by f(x)=5^.
Find the range of f.
Click here to see answer by stanbon(26297)

Question 95649: Please help me with this problem:
Given the function f defined by f(x)=cos(x)-cos^2(x) (for -pi being less than or equal to x which is less than or equal to pi).
Find the x-intercepts of the graph of f.
Click here to see answer by stanbon(26297)

Question 95645: Please help me with this problem:
Let f be the function given by f(x)=ln| |.
a. Find the domain of f.
b. Determine whether f is an even function, an odd function, or neither.
Click here to see answer by stanbon(26297)

Question 95805: How do you write an equation for the relation given in the chart?
x -2 0 2 4
y 10 2 -6 -14
Click here to see answer by edjones(3299)

Question 95808: Help me please
The question asks
Determine the slope of the line passing through each pair of points. If the slope is undefined, write "no slope".
(6, -4) and (-3, 7)
Click here to see answer by elima(1433)

Question 95883: Find the slope-intercept form of the equation of the passing through the points (-1,2) (2,8). Thanks in advance.
Click here to see answer by checkley71(8405)

Question 95809: Help me please
The question asks
Determine the slope of the line passing through each pair of points. If the slope is undefined, write "no slope".
(-2, -6) and (7, -6)
Click here to see answer by kiljoy(51)

Question 95810: Help me please
The question asks
Determine the slope of the line passing through each pair of points. If the slope is undefined, write "no slope".
Determine the value of r so that the line through (-4, 8) and (r, -6) has a slope of 2/3.
Click here to see answer by elima(1433)

Question 96174: Fill in the table in such a way that when t is the independent variable, the pairing is a function, and when T is the dependent variable, the pairing is not a function. T ? ? ? ?
V ? ? ? ? This is in table form.
Click here to see answer by stanbon(26297)

Question 96234: You have a square with 16 smaller square in it. The top left of the larger square is A, the bottom right is B.
Question: You are to move from A to B moving right or down along the line.
How many ways can this be done?
Click here to see answer by stanbon(26297)

Question 96224: Which equations below represent y as a FUNCTION of x?
x+y=1 y^3+x^2=2
x^2-y=0
x^2+y^2=5
y+y^2+x=1
Click here to see answer by tutorcecilia(2042)

Question 96372This question is from textbook Intermediate Algebra
: This question is from textbook Intermediate Algebra

Click here to see answer by mathman409(67)

Question 96382This question is from textbook Intermediate Algebra
: I don't understand how you can determine this problem.
its a Qualitative graphing problem. here is the problem
Let F be the temperature (in degrees Fahrenheit) at a specific outdoor location at t hours after 6 A.M. on a specific day. (so t=0 represeents 6 A.M.)
My question: how do you determine the independent from the dependent variable. And how do you know what to put on the graph since there is no numbers. Am I supposed to take my best guess?
I am thinking that the F is dependent and the t is independent. How do I do I graph the problem?
This question is from textbook Intermediate Algebra

Click here to see answer by stanbon(26297)

Question 96436: What is the domain of f(X)= XSquared + 4
Click here to see answer by stanbon(26297)

Question 96634This question is from textbook algebra 1
: Find the domain of the function #58 y equals 1/3x
#60 y equals 1/x + 2This question is from textbook algebra 1

Click here to see answer by tutorcecilia(2042)

Question 96695This question is from textbook Algebra 1

: Each rectangular flag is 1.2 yards by 0.5 yard. The material costs $1.75 per square yard.
Question: Write a function showing the relationship between the number of flags and the cost of material.
Here is what I think it is - - C=1.75(0.60)nThis question is from textbook Algebra 1

Click here to see answer by anjali_yamini(27)

Question 96848: Solve the equation: x^2-36=0
Click here to see answer by jim_thompson5910(13794)

Question 96849: 4) Solve the equation for y:
y-2/x-4 = -2
Click here to see answer by jim_thompson5910(13794)

Question 96873: WRITE A FUNTION RULE FOR THE DATA IN THE TABLE.
INPUT X-0 1 2 3 4
OUTPUT Y-0 4 8 12 16
Click here to see answer by stanbon(26297)

Question 96701: According to engineers, 3% of the water in new orleans had been pumped out, leaving 6,000,000 cubic yards after 14 hours of pumping. In a news report two days later, 6.2% had been pumped out, leaving 5,800,000 cubic yards of water. Given a linear relationship, how much water was originally deposited into New Orleans by Hurricane Katrina. How long til the city will be dry?
Click here to see answer by ankor@dixie-net.com(6693)

Question 96911: Please help, my teacher just gives us the lessons to do as homework and does not explain anything.
Algebra 1, page 47, #14.
a. Write a rule for the function -- Input - 0, 1, 2, 3 and Output - 0, .5, 2, 4.5
b. Find the value of y so that (1.5,y) is on the graph of the function.
Thanks!
Click here to see answer by jim_thompson5910(13794)

Question 96913: Kathy and Rheta share an 8 slice pizza. The number of slices Rheta can eat depends on how many slices Kathy eats. Write a function rule to describe this relationship. What are the domain and range?
Click here to see answer by stanbon(26297)

Question 96931: Please help with the following:
State a function for the following:
x= 1,2,3,4
y=20,16,12,8

Click here to see answer by scott8148(3385)

Question 96931: Please help with the following:
State a function for the following:
x= 1,2,3,4
y=20,16,12,8

Click here to see answer by mathslover(126)

Question 96948: what is the meaning of function and relation?
Click here to see answer by iamstupid(1)

Question 97113This question is from textbook
: I need to find the domain for the following function:
f(x)=2x+7/x^3-5x^2-4x+20
I'm completely stuck on how to deal with the x^3.
Thanks!This question is from textbook

Click here to see answer by stanbon(26297)

Question 97169: I need to determine the domain of the function
Click here to see answer by edjones(3299)

Question 97196: f(x)=1/x-4x-5 find the domain of f(x)
Click here to see answer by stanbon(26297)

Question 96649This question is from textbook Trigonometry
: I need help with this problem. I think i know what i am doing but i am insecure. I need to know if this problem is even, odd, or neither.
f(x)= x + |X|This question is from textbook Trigonometry

Click here to see answer by edjones(3299)

Question 97256: given the following function, find the indicated values
f(x)=-7x+1
a) f(o)
b) f(-1)
c) f(3)
Click here to see answer by mathslover(126)

Question 97333: The problem that i am working is a composite function. I am not understanding how to solve for the x in the middle.

The problem is f(u)= 9u2+5u-4 = g(x)=x+9
i have so far gotten to the conclusion that
9x2+ ? + 770.
How do i get the middle number it's not making since
9x2+729+5x+45-4 is what i have solved. How do i get the middle number x

Click here to see answer by stanbon(26297)

Question 97347: P(x) = -.2x^2 +300x-200. What is the profit if 500 are sold? What value of x will the profit be at a maximum?
Click here to see answer by jim_thompson5910(13794)

Question 97374: f(x)=3x-10 and g(x)=3x+7
(a) g(-1) (b) f(1)-g(2)
this is an example of a quiz question, I don,t
understand what i'm solving for? we are working with slope, domain, range,function, I know he is not asking for a graph.
Bonnie
Click here to see answer by mathslover(126)

Question 97435: PLEASE help me with these 2 problems as I have completed the other 28 problems on my College Algebra worksheet, but just cannot get these that deal with INFINITY or -INFINITY. Thanks so much.
1. Find the domain of the given function. (If you need to use negative infinity or infinity, enter -INFINITY or INFINITY.)
K(v) = 4v^2 - 9/v^2 - v - 72
2. Write the domain of the rational function in interval notation as:
f(x) = 1/x - 11
(Type -INFINITY for -x or INFINITY for x, if needed.)
Thanks~ I do need this as soon as possible. I appreciate your help sooooo much.
Click here to see answer by jim_thompson5910(13794)

Question 97457: The problem is:
f(x)=3x^2+x+5
f(x+h)-f(x)/h
h is not = to 0

Click here to see answer by stanbon(26297)

Question 97671: Dear Teacher,
I have a math problem which is as below: draw a graph with y=|x+2|, domain as a real numbers.
I don't know how to do it, could you please help me out.
Thanks so much for your help!!!!
Wendy
wjiangus@yahoo.com
Click here to see answer by stanbon(26297)

Question 97789: Word problem.
Area of a window - A window is in the shape of a square of a side s, with a semicircle of diameter s above it. Write a function that expresses the total area of the window as a function of s .
Click here to see answer by mathslover(126)

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