Tutors Answer Your Questions about Functions (FREE)
Question 717708: A ball is dropped from a window that is 64 feet above the ground and the ball hits the ground after 2 seconds. If function H calculates the height of the ball after t seconds, determine the domain and range for H while the ball is falling
Click here to see answer by solver91311(24713)  |
Question 717728: I need to have a grasp on determining if a function is injective, surjective or bijective. I understand what the terms mean but need an algabraic means of determination for each with, perhaps if it is not asking too much, an explanitory deally alongside them.
Click here to see answer by stanbon(75887) |
Question 723664: Please help me solve this equation (((f(x)= √4x+16)))
Consider the function
a) Find the domain and range.
b) Find f(3).
Please show work. I do not understand this at all and wish to know how to figure this stuff out on my own.
Click here to see answer by MathLover1(20849)  |
Question 723928: I am just learning to do functions, domain.
When f(x)=x+1 and g(x)=2x find:
a) f(g(-3)=
so I did f=x+1
f= 2x+1
But I lose it for f(g(-3)
Is it f=x+1
f= (2x+1)-3
f= -6x+-3
I know this is wrong because I have the correct answer, but do not understand. The correct answer is 5,
please tell me what I m doing wrong?
Thank You
Marie
Click here to see answer by stanbon(75887) |
Question 725287: Sum, difference, and product of two functions:
Suppose that the functions f and g are defined for all real numbers x as follows.
f(x)=2x^(2)
g(x)=3x
Could you please help me write the expressions for (f+g)(x), (f●g)(x), and evaluate (f-g)(2)
Click here to see answer by solver91311(24713)  |
Question 725291: The equation that I am dealing with says
6/(z-5)-60/(z^2-25)=1
I have tried to solve this several times not and I come up with an answer that I am really not able to factor and solve. any help would be a blessing right now! thank you!
Click here to see answer by checkley79(3341) |
Question 726571: Identify the domain of the function: f(x)= √x - 2
Choices:
a){x/x is greater than or equal to 2}
b) {x/x is greater than or equal to 0}
c) {x/x is greater than or equal to -2}
d) {y/y is greater than or equal to -2}
Thank you very much.
Click here to see answer by lynnlo(4176) |
Question 726864: In class homework im completely lost help is needed very urgently
Thanks
A video game store sells video games for $30 each. The store has a coupon for $9 off the total purchase for up to 10 games.
a) Determine the equation and graph the function that describes the relationship between the total cost and the number of video games a customer buys.
(just need help with equation),
and state domain and range
Click here to see answer by josgarithmetic(39613) |
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