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So for the x-coordinate of R. can I say that because b/2a=2 -b/2a =-2? I find it really amazing that there are people like you on here willing to help at no apparent financial gain? Are you offiliated with mathsisfun.com? Or do you just love the math?
Thanks again
Deon
No worries. Can you please explain how you went about finding the answer? Thanks a lot
Hi Bobbym. Thanks but what I meant was a offline editor or something simular. I am currently doing all my work in electronic format. I'm using design science mathtype but it is a bit limited in some ways. Also do you have any ideas on finding R?
Hi bob thanks a lot. Can you recomend any software which I can use to practice LaTeX? It would be much faster if could type the math instead of uploading gif images.
Good luck with the first aid!
picture in gif format.S
Hi all. I am totally lost here. I have to find the point R. I am given that the range of the parabola is (-2,infinity) So I know the x-coordinate is -2 but how would I find y? As far as I can remember I need to x-intercepts and a max y vallue to do this? I can see that the one point which it passes through is (0,0) I can also see that the axis of symmetry is x=2 so should I times that by 2 and then the negative x-intercept is -4? Thanks a lot in advance
Thanks that helps a lot. I am doing a mathematics access course at my university which is basically all high school math in 1 year so even the obvious things seems complicated to me at this stage lol.
Hi bobby and bobbym. Bobby I double checked and no the definition of g(x) is as I wrote it. Bobbym That makes total sense now squaireing both sides I thought it looked like I should use that method. As for the Graphing I have Geogebra but I doubt that i would be aloud to use that during my exam. So the domain is just R? Can you please explain to me how to find the domain without graphing the equation?
Thanks a lot
Deon
Hi all. My question is: find the domain of g(x) and solve the equation 4^g(x)=8 am I doing this the right way? I feel very unsure about the domain. Thanks in advance.
Hi Bob. Thanks a lot it works out perfect now.
Hi. all: I have no idea how to find the equations of these parabolas
(c) It passes through the points (0;0), (1;2) and ( 2; 22).
(d) The xintercepts are 4 and 2 and the maximum yvalue is 6. (Hint:
the axis of symmetry lies halfway between the two xintercepts.) I know I have to use the formula a(x-r1)(x-r2)=6 How do i find A? As for (c) I have no idea . Thanks in advance
Deon
Sorry if i was a bit confusing. Here is an example of 1 of my questions.
Suppose p=(-3,4)
and q:E:R:-4<x<0
sketch each of the sets
p,q
p"union"q
and p"intersection"q on seperate numberlines
I wasn't sure how to write this in LaTex so if it's still a bit unclear let me know and i'll attach a .gif image.
Also -4 in the set q must be less than or equal to. That's what i meant in my previous post with [
Thanks
Hi. I have a upcoming assignment where i need to sketch some very basic numberlines and show the union and intersections of different sets. I usually submit my work online and up to now it worked out very well because i only had algebra and used mathtype. Does anyone have any suggestions for software which i can use for creating graphs etc For windows? I have searched everywhere but can't seem to find what i'm looking for. I managed to draw the numberlines but there's no way to insert the correct ticmarks e.g <> not sure what it's called exactly but in roster notation it's written as e.g [8,0) or (4,6] Thanks a lot in advance
No. I havn't done complex numbers at all. The only thing that has me wondering is the question "Find the solution set of..." As far as I know a solution set has more than 1 value? Do you think it would be ok to write "The solution set is {3}"
Hi. gAr thanks a lot for your effort. But that's a bit past my knowledge level. I'm busy doing a mathematics access course at my university which is more or less final year high school level math. My question is "Find the solution set of the equation" So from Soroban's solution i can see that there is only one value for x? Doesn't a solution set have to have more than one value?
Hi. My name is Deon I am 22 years old from South Africa. I am currently doing a mathematics access course which can be a bit challenging at times... I have been using mathsisfun for a few months but lately I am unable to find all the answers to my questions on there which is why i joined the forum.
Hi Soroban thanks a lot i completely forgot about that... The question in my book is "Find the solution set of the equation" Shouldn't a solution set have more than 1 vallue? Sorry i am totally new to LaTeX. That was my first attemp lol. Why didn't it show at all? I only see Math? where i entered the code.
Thanks again.
Hi all. Am i doing this the right way? Thanks a lot in advance.
Latex cleaned up a little by Moderator.