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how did you get that
see 5 (4/5)^2 is 5 (16/25) = 16/5
8(4/5) = 32/5
u add both f these u get 48/5
then u subtract 6 which is (48/5) - 6 (48-30)/5 18/5
thanks! I am trying to do relative minima and maxima problems
I am lost as hell!
how old r u?
just went back to college
ur my mums age almost
cn i help smwher?
that would be awesome
how do you determine when it is a minima or a maxima
see lets take an example of a cubic function f(x)
when you differentiate it to get f'(x) , u evaluate the roots of f'(x)
these r called critical points...these are the points where it can be maximum or minimum..the function that is
get it til here?
so now to determine whether its max or min, what u do is u differentiate once more to get f''(x)..now plug in ur critical point into it
Are you going to be on here long today? I have about 60 problems I have to do.
What determines if it is maxima or minima?
when u plug the point into f''(x), see the sign of the function
if its negative its min and positive max?
if the sign of f"(x) is negative its maxima, and viceversa
no the opposite
gotcha! Thanks a million!
m not gonna b long inuf fr 60 problems..bt as much as i can
thanks I am afraid I will be on here all weekend
no prob...well see wt we cn crack
According to th answer on mymathlab, the answer was -46/5.... how is that
nuthin wrong with 40s :)
well amistre check on that question she posted
right on top..
I really appreciate yall helping me!!!1
5(4/5)^2+8(4/5)-6 =??? this one
5x^2 +8x -6 is a parabola; that looks like a bowl sitting on the counter; it has a local minimum at its vertex; ....i sctually finished typing this reply like 40 seconds ago; slow response time i guess
-b/2a = x compnent; -8/2(5) = -4/5 right?
5(-4/5)^2+8(-4/5)-6 = y ^^^ use (-)4/5
5(16/25) +8(-4/5)-6 = y
yeah denise i thought it was 4/5 while actually its -4/5
16 -32 -6 --------- = 5 5 1
6(5) = 30 s000 (16-32-30)/5
where did the 6(5) come from???
cz u take the lcm while subtracting
to get the 30
yeah; fractions reguire you to be wearing the same pants; and that 6/1 is not dressup for company; so we got to changes its clothes to match .... we put it in 5 pants and find a top to match