Tutors Answer Your Questions about Functions (FREE)
Question 150803: OP = <6,5>, OQ = <13, −2>, u = i − 3j and v = 3i − 2j. If PQ = ku + hv
where k and h are constant, find
a)k and h Hint: PQ = PO + OQ).
k & h already get answer k=1 & h=2....
b)Unit vector for PQ in terms of i and j??
Click here to see answer by Fombitz(32388)  |
Question 150910: Hello all I would like your help one more time. I've got most of what my teacher asked us to do but I am stuck on the following the task is to:
Evaluate the functions for the values of x given as 1, 2, 4, 8, and 16. Describe the differences in the rate at which each function changes with increasing values of x. f(x) = x2 - 3x + 2
f(x) = 2x3 + 7x2 - x - 1
f(x) = 10x
f(x) = ln x (I don't know if this is (one n x) or the letter (l)n x, whatever that means)
Any help would be GREATLY appreciated!!
Click here to see answer by jim_thompson5910(35256) |
Question 151132: The lenght of Jim's leader is always 2 feet shorter than lenght of this fishing rod.If the product of the lenght of the leader and lenght of the rod equals the strenght of his line in pounds and he uses a 16 lb line,what is the lenght of his leader?
Click here to see answer by stanbon(75887) |
Question 151133: Kay wants a rectangular area in greenhouse reserved for African violets.She says the widths of the area must be one foot less then the length she also tells me the area must be at least 12 square feet. What widths satisfy Kay's requirements?
Click here to see answer by mducky2(62) |
Question 151162: Im stuck on this problem. Please help me by showing all the steps and equation. Thank You!
3. For the 2 functions, f (x) and g(x), tables of values are shown below. What is the value
of g(f (3)) ?
x f(x) x g(x)
–5 7 –2 3
–2–5 1 –1
1 3 2 –3
3 2 3 –5
A. –5
B. –3
C. –1
D. 2
E. 7
Click here to see answer by vleith(2983) |
Question 151659: IF f(4)=0 and f(6)=6, which of the following could represent f(x)?
A. 2/3x-4
B. x+2
C. x-4
D. 3/2x+6
E. 3x-12
Now i no the answer is "E" because someone told me but they didn't explain it good enough so i was wandering if you could give it a try?
Thank you!
Click here to see answer by jim_thompson5910(35256) |
Question 151708: This is another Domain question that I would like to have answered because it contains the square root and is different from the first one submitted.
If I get my symbols right. Its the old division sign with a check on the beginning. You can tell I'm old school going back to school after 36 years.:-)
Thank you for your help.
Click here to see answer by jim_thompson5910(35256) |
Question 151861: Please write the function rule for the following table:
Domain: 3.5, 4, 4.5, 5, 5.5, 6
Range: 35, 35.5, 36, 36.5, 37, 37.5
Click here to see answer by scott8148(6628)  |
Question 152047: A circus performer is juggling clubs while standing on stilts. He releases a club from a point 8ft above the ground with the initial vertical velocity of 10 ft per second.
The vertical motion mode is h = -16t2(It's t to the second power) + vt + s where he is the height of an object in feet, t is the time seconds, v is the initial vertical velocity in feet per second, and s is the initial height in feet.
a) Write an equation in function notation that models the height (in feet) of the club as a function of time (in seconds).
b) Make a table of the time in the air and the heights of the club from 0.1 seconds to 1.5 seconds.
c) Graph the function and label the vertex.
d) How long after the club is released does the club reach its maximum height? What was the maximum height?
e) How long after the club is released will it return to the ground? How do you know this?
Thanks so much for your help!!!!
Click here to see answer by vleith(2983) |
Question 152277: f(x)= 1/ X-3
here it is given that X is not equal to -3
solution
domain = set of all real no's except -3
range = set of all real no's except 0 << here i m confused from where did this zero come from.just this part.
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also like in this question
f(x)= x-1/x-4 , given that x is not equal to 4
here doman is = set of real nos except 4
and range is set of all real nos except -1<< again from where did -1 come from.
Click here to see answer by oscargut(2103)  |
Question 152544: Given the functions:
f(x)= {(3,5), (2,4), (1,7)}
h(x)= {(3,2), (4,3), (1,6)}
g(x)= sqrt(x-3)
k(x)= x^2=5
determine
1) f(h(3))
2) g(k(x))
3) g(k(7))
4) k(g(x))
Click here to see answer by Fombitz(32388)  |
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