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Determine the points on each curve that correspond to the given slope of the tangent.
y=(2x1)(4+x^2), m=3
 one year ago
 one year ago
Determine the points on each curve that correspond to the given slope of the tangent. y=(2x1)(4+x^2), m=3
 one year ago
 one year ago

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IsTimBest ResponseYou've already chosen the best response.0
My final answers are (4/3,3.703) and (1,9). The correct answers are (1.53,3.42) and (1.20,8.70)
 one year ago

dumbcowBest ResponseYou've already chosen the best response.1
don't understand the question are there 2 functions?
 one year ago

IsTimBest ResponseYou've already chosen the best response.0
Only one function, but the slope is 3.
 one year ago

dumbcowBest ResponseYou've already chosen the best response.1
ok so set dy/dx = 3 dy/dx = 2(x^24) + 2x(2x1) = 3 > 6x^2 2x 11 = 0 use quadratic formula to get x_coordinates
 one year ago

IsTimBest ResponseYou've already chosen the best response.0
That's what I think did, but I got the answer wrong.
 one year ago

dumbcowBest ResponseYou've already chosen the best response.1
check your computation of quadratic formula...the above function gives correct xvalues...1.197, 1.53
 one year ago

IsTimBest ResponseYou've already chosen the best response.0
Well. Here's what I did and results: Found dy/dx=6x^22x8. Factored out 2 so 0=2(3x^2x4) Oh, didn't do quadratics. Slip of the mind, sorry. Factored the equation so x=4/3 amd x=1.
 one year ago

dumbcowBest ResponseYou've already chosen the best response.1
oh i see...the only part that is wrong is you assumed it equaled 0 but RHS should be 3 6x^2 2x 8 = 3 then factoring out the 2 doesn't really help
 one year ago

IsTimBest ResponseYou've already chosen the best response.0
Ok. I'll try that. Thanks. I'll Be off for 15 minutes.
 one year ago
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