Tutors Answer Your Questions about Functions (FREE)
Question 34538: Need help with the following composition of functions problem. When I worked this problem I came up with (a) -2 and (b) 12:
5. Given that f(x)=1-3x and h(x)= (5x^2)+4x , find each of the following
(a) (f o h)(-1)
(b) (h o f)(1)
Click here to see answer by lyra(94)   |
Question 35056: Hello,
My name is Kristin and my time for the college placement exam is approaching and I need help!!!!!so please help
f(a)=2a-1 and g(a)=a^2, then g(f(a))=?
I believe this is setup like a^2(2a-1), but then I get confused after this point. I don't know whether I should multiply them by each other and then pull out the a^2, which would bring back to the initial equation. I am lost.
THANK YOU IN ADVANCE,
KRISTIN
Click here to see answer by venugopalramana(3286) |
Question 35046: a) find the horizontal,vertical, and or slant asymptotes
b) find the x and y intercepts
f(x)=3x/x+1
I came up with -1 vert ---- 3 or 0 for horizontal ----and 0 as x intercept and could not figure out y
Of course we have to graph where do I get help for that? Please help
Click here to see answer by venugopalramana(3286) |
Question 35301: I messed up and didn't send the whole problem, Please help!!
In most businesses, increasing prices of their product can have a negative effect on the number of customers of the business. A bus company in a small town has an average number of riders of 800 per day. The bus company charges $2.25 for a ride. They conducted a survey of their customers and found that they will lose approximately 40 customers per day for each $.25 increase in fare.
Given the description above, graph the function, identify the graph of the function (line, parabola, hyperbola, or exponential), explain your choice, and give the domain and range as shown in the graph you have drawn, and also the domain and range of the entire function excluding unrealistic values.
Click here to see answer by rapaljer(4667)  |
Question 35480: It is approximately 480 miles from Los Angeles, California to San Francisco, Allowing for various traffic conditions, a driver can average approx. 60 miles/hr.
a Write a linear function that express the distance traveled, d, as a function of time, t.
Click here to see answer by rapaljer(4667) |
Question 35501: If f=( (2,-1),(-3,0),(4,1/2),(pie,2) ) and g = ( (2,2),(-1,4),(0,0) ) find the following:
f(2) + g(2)
Click here to see answer by rapaljer(4667) |
Question 35501: If f=( (2,-1),(-3,0),(4,1/2),(pie,2) ) and g = ( (2,2),(-1,4),(0,0) ) find the following:
f(2) + g(2)
Click here to see answer by Prithwis(166) |
Question 35570: this is the problem
f(x)= -x/x^2+x-6
a find the horizontal, vertical, or slant asymptotes
b find the x and y intercepts
c graph the function - ijust submitted another problem similiar to this but forgot to write this in for what i need to do with the function - sorry and thanks for the help - :)
Click here to see answer by Earlsdon(6294) |
Question 35544: I am doing a project on Step Functions. It has been very difficult to find information about step functions and what they're used for. If possible I was wondering if you could tell me some ways step functions are used in everyday life. (Things like careers, jobs, projects, etc.) This would help me tremendously.
Thanks---
Click here to see answer by rapaljer(4667) |
Question 35544: I am doing a project on Step Functions. It has been very difficult to find information about step functions and what they're used for. If possible I was wondering if you could tell me some ways step functions are used in everyday life. (Things like careers, jobs, projects, etc.) This would help me tremendously.
Thanks---
Click here to see answer by Nate(3500) |
Question 35944: This chart shows the fees for an 18 hole round of golf for each of the last 5 years at a local municipal golf course. Assume that this chart defines a function with the name of f. State the domain of f.
Year 1995 fee =$21
Year 1996 fee =$23
Year 1997 fee =$26
Year 1998 fee =$26
Year 1999 fee =$30
A) {(21, 1995),(23, 1996), (26, 1997), (26, 1998), (30, 1999)}
B) {1995, 1996, 1997, 1998, 1999}
C) {(1995, 21), (1996, 23), (1997, 26), (1998, 26), (1999, 30)}
D) {21, 23, 26, 30}
Click here to see answer by rapaljer(4667) |
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