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samnatha
 3 years ago
using the same axsis and scales graph the functions f(x)=x and g(x)= 2x  3
samnatha
 3 years ago
using the same axsis and scales graph the functions f(x)=x and g(x)= 2x  3

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mathstudent55
 3 years ago
Best ResponseYou've already chosen the best response.0Make a table of values for each function. To do that, come up with some values for x and calculate f(x) and g(x) f(x) = x x  f(x)  2  2 1  1 0  0 1  1 2  2 Use the above points to graph f(x). Then do the same for G(X)

Aperogalics
 3 years ago
Best ResponseYou've already chosen the best response.0@samnatha r u there?????/

samnatha
 3 years ago
Best ResponseYou've already chosen the best response.0yes sorry was just tying to work it out

samnatha
 3 years ago
Best ResponseYou've already chosen the best response.0i then have to solve x =  2x3

mathstudent55
 3 years ago
Best ResponseYou've already chosen the best response.0No. You don't need to solve that equation. Just make two tables of points and graph both on the same xy graph

samnatha
 3 years ago
Best ResponseYou've already chosen the best response.0oh ok thanks theres another one which is 2x3 < x

mathstudent55
 3 years ago
Best ResponseYou've already chosen the best response.0Sorry, I misread your post. When you said you have to solve x = 2x  3. I thought you meant that you needed to solve that to get the graph. After you graph both f(x) and g(x on the same graph, see where the graphs intersect. That's the solution tox = 2x  3

samnatha
 3 years ago
Best ResponseYou've already chosen the best response.0ok thanks i got that bit but i'm not too sure on the second bit

mathstudent55
 3 years ago
Best ResponseYou've already chosen the best response.0dw:1353697888667:dw

mathstudent55
 3 years ago
Best ResponseYou've already chosen the best response.0The soulition to x = 2x  3 is where the two graphs intersect. There are two points.

samnatha
 3 years ago
Best ResponseYou've already chosen the best response.0(1,1) and (3.5, 3.5) thats what i got on my graph is that right ?

mathstudent55
 3 years ago
Best ResponseYou've already chosen the best response.0The solution to 2x  3 < x is the x values for which the value of g(x) is less than the value of f(x). If you look in graph, see where the y vaslue of g(x) is lower than the y value of f(x).

mathstudent55
 3 years ago
Best ResponseYou've already chosen the best response.0I think it's (1,1) and (3,3)

samnatha
 3 years ago
Best ResponseYou've already chosen the best response.0ok my graph is probs a bit diff but thanks for your help :)

samnatha
 3 years ago
Best ResponseYou've already chosen the best response.0god the pressures of leaving cert math
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