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I need some serious help please :(..
Make a summary table with these headings shown for each graph: Interval, Sign of Function, Sign of Slope, Change in Slope
I dont know how to figure out these??
 one year ago
 one year ago
I need some serious help please :(.. Make a summary table with these headings shown for each graph: Interval, Sign of Function, Sign of Slope, Change in Slope I dont know how to figure out these??
 one year ago
 one year ago

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sabika13Best ResponseYou've already chosen the best response.0
this is the graph i got with the question : pic.twitter.com/7aVfNYi4
 one year ago

sabika13Best ResponseYou've already chosen the best response.0
here, can u see this?
 one year ago

mark_o.Best ResponseYou've already chosen the best response.1
Interval Table X Y 4 close to zero 2 0.2 0 1 0.5 2 1 Infinity 2 1 3 0.2
 one year ago

sabika13Best ResponseYou've already chosen the best response.0
at the back of the book, the intervals are x<1 and x>1
 one year ago

sabika13Best ResponseYou've already chosen the best response.0
i understand the intervals, but not the rest of them like sign of slope..
 one year ago

mark_o.Best ResponseYou've already chosen the best response.1
sign of functions f(x)= infinity, if x=1 f(x)=1 to infinity, if interval is from 0<x<1 f(x)=infinity to 1, if interval is from1<x<2 f(x)=1 to approach zero, if interval is from x>2 f(x)=1 to approach zero, if interval is from x<2
 one year ago

sabika13Best ResponseYou've already chosen the best response.0
where did you get 0.25 and 0.2 from?
 one year ago

mark_o.Best ResponseYou've already chosen the best response.1
sign of slope and change of slope y2 y1 slope m= x2  x1 from interval [2,1], f(2)=0.2 , f(1)=0.25 therefore 0.250.2 0.05 0.05 m1=== = 0.05 positive slope here 1(2) 1+2 1 from interval [1,0], f(1)=0.25 f(0)=1 0.251 0.75 m2=== +0.375 still positive here 11 2 the slope here is increasing from positive 0.05 to 0.375
 one year ago

mark_o.Best ResponseYou've already chosen the best response.1
look at the graph x=1, y=f(1)=0.25 x=2, y=f(2)=0.2
 one year ago

mark_o.Best ResponseYou've already chosen the best response.1
those are only approximation and assumption only to be able to know if you are on positive or negative slope changing decreasing or increasing
 one year ago

mark_o.Best ResponseYou've already chosen the best response.1
but if the sign is change from positive to negative it is decreasing function and from negative to positive sign it is increasing functon
 one year ago

sabika13Best ResponseYou've already chosen the best response.0
ohhh it makes sense!! and then you do the same thing to the other side right, because what you did was x<1 (for slope) and then I do x>1 ?
 one year ago

mark_o.Best ResponseYou've already chosen the best response.1
next try that from interval [2,1] or from x=2 and x=1 find f(2)=? , and f(1)=? then find out if it is increasing or dec
 one year ago

sabika13Best ResponseYou've already chosen the best response.0
okay so f(2)=1 and f(3)=0.25 Slope= 0.25  1 / (32) = 0.75 f(3)= 0.25 f(4)= 0.02 slope= 0.020.25 / (43) =0.23 Negative and decreasing!!! :D
 one year ago

mark_o.Best ResponseYou've already chosen the best response.1
yessssss....good luck now and enjoy lol :D
 one year ago
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