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

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 Algebra: Functions, Domain, NOT graphing Solvers Lessons Answers archive Quiz In Depth

 Question 233746: Rewrite the equation so that x is a function of y. -10x= -5y-65 Click here to see answer by user_dude2008(1861)

 Question 233752: Rewrite the equation so that y is a function of x -10x= -5y-65 Click here to see answer by rfer(12670)

 Question 233754: Rewrite the equation so that y is a function of x. 6y - 6x = 15 Click here to see answer by rfer(12670)
 Question 233754: Rewrite the equation so that y is a function of x. 6y - 6x = 15 Click here to see answer by stanbon(57387)

 Question 234397: Take a look at the table below and write out an equation for f(x). x -2 -1 0 1 2 f(x) -2 2 6 10 14 Click here to see answer by stanbon(57387)

 Question 234367: i have two tables i have to write functions rules for i know what the difference is between them but i dont know who to write it or explain it my book doesnt show me the first table is x- 1,2,3,4 y- 25,30,35,40 the second table is x-1,2,3,4 y \$10.00, \$12.50,\$15.00,\$17.50 im sure i can do it i just dont know how to write it please help me Click here to see answer by scott8148(6628)

 Question 234519: Good Morning I was wondering if you could help me with this problem Given F(x)=x^2+2 , Find F(a+2)-F(a) I did (a+2) (a+2) a^2+4a+4 a^2+4a+4-a^2 Answer 4a+4 I'm not sure if this is correct though. Thank you Click here to see answer by stanbon(57387)

 Question 234572: Hi again A quick question about the domain and range of the relation: (x,y): x^2+y^2<6 This relation has 19 ordered pairs that satisfy it. I think the answer is either Domain= -2<=x<=2 Range= -2<=y<=2 Or Domain= {-2,-1,0,1,2} Range= {-2,-1,0,1,2} I'm leaning toward the second choice yet I'm really unsure. Thank you Click here to see answer by stanbon(57387)

 Question 235000: Give an example of a rational function that is undefined at x = a where a is a real number. Next, state the domain of your rational function using both set notation and interval notation Click here to see answer by solver91311(16897)

 Question 235001: FORMULA: f(x+h)-f(x) ___________ h f(x)=5/x a) Find f (x + h) b) Find f (x) c) Substitute f (x + h) and f (x) into the difference quotient formula d) Simplify. If the simplified result can be written as A/B where A and B are expressions, what is A and what is B? Click here to see answer by solver91311(16897)

 Question 235050: given the function f described by f(x)=10y squared+9y-6 find the function values. f(-2)=? Click here to see answer by solver91311(16897)

 Question 235230: you join an aerobics class at a local gym. the cost is \$3 per class plus \$10 for the initial membership fee. write an equation that shows the relationship between the number of classes n you attend and the amount you pay p. i am in 8th grade and do not understand how to do this problem and my mom is smart and usually helps me but even she is stumped on this one. i hope you can help. thank you in advance for your help. Click here to see answer by monika_p(71)

 Question 235329: Find the domain of the function. p(x)=x squared - 2x + 9 What is the domain of p? Click here to see answer by jim_thompson5910(28598)

 Question 235781: f (x) = x^2 - 4x - 1 Click here to see answer by nyc_function(2733)

 Question 235766: given the function g(v)=3v+4, find g(5), g(-7), and g(6.7). find the slope of (5,3) and (8,-6) what is the domain of g(x)=10 --- 3-7x find the indicated outputs for f(x)=5x 2squared -5x f(0)= f(-1)= f(2)= Click here to see answer by nyc_function(2733)

 Question 235932: find the domain of the function p(x)=x^ - 2x +10 x^ means x squared, I hope I put that in right thank you for your help, can wait to see the steps to this Click here to see answer by jim_thompson5910(28598)
 Question 235932: find the domain of the function p(x)=x^ - 2x +10 x^ means x squared, I hope I put that in right thank you for your help, can wait to see the steps to this Click here to see answer by solver91311(16897)

 Question 235802: Which of the following are functions? a. f(x) = x + 4 b. f(x) = 3 if x>2 otherwise f(x) = -2 c. f(x) = 7 if x>0 or f(x) = -7 if x<0 or f(x) = 7 or -7 if x = 0 I believe A is a function but that B and C are not, but I am not sure. How do I tell? Click here to see answer by jim_thompson5910(28598)

 Question 235943: for the function f and g, find fog and gof and state their domains. g(x)=x+2 Click here to see answer by solver91311(16897)

 Question 235971: What is the domain and range of {(-4,3),(-2,-1),(0,0),(1,4),(2,6)} Click here to see answer by solver91311(16897)

 Question 236883: determine whether y to be a function of x the abosulte value of y equals x Click here to see answer by nyc_function(2733)

 Question 237049: (0,5),m=-2 write the equation in standard form of the line that passes through the given point and has a slope of M or that passes throught the two given points Click here to see answer by rfer(12670)

 Question 237404: How would you determine two functions f and g such that h(x)= f(g) with a domain of (x)? h(x)= (x-2)to the 4th power Click here to see answer by solver91311(16897)

 Question 237431: how can you find the function rule for -2 12 1 9 4 6 Click here to see answer by solver91311(16897)

 Question 237546: Given the range {-24, 0, 20}, what is the domain for the relation y = 4x - 4? Click here to see answer by jim_thompson5910(28598)

 Question 237848: write a polynomial function in standard form with the given zeros Click here to see answer by stanbon(57387)

 Question 237907: How would you find f(3) if f(x)=3x+7? I missed this day in algebra and I am having a difficult time understanding this, for my textbook is very unexplanatory. Click here to see answer by solver91311(16897)

 Question 238108: Rewrite equation 4x-10y equals 11 as a function of x? Click here to see answer by solver91311(16897)

 Question 238207: Find the domain and range of the inverse of the function f(x)= 7 + 3e^x. I found the inverse to be y =ln(x-7)/3. I do not know how to find the domain and range of the equation. I know that the range of the original function is the domain of the invrse function, but that is it. Click here to see answer by solver91311(16897)

 Question 238355: In 2002, the price of mailing a letter was \$.34 for the first ounce and \$.21 for each ounce after the first ounce. Write a rule to describe the function. Click here to see answer by stanbon(57387)

 Question 238401: what is the domain of y = -4x? Click here to see answer by Fombitz(13828)

 Question 238508: find the domain of each rational function f(x)= 7x ____________ x^2+16 Click here to see answer by edjones(7569)

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