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eroshea
 2 years ago
find the point where the normal line to y = x + root x at (4,6) crosses the yaxis.
eroshea
 2 years ago
find the point where the normal line to y = x + root x at (4,6) crosses the yaxis.

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phi
 2 years ago
Best ResponseYou've already chosen the best response.0did you find the equation for the slope of the curve?

eroshea
 2 years ago
Best ResponseYou've already chosen the best response.1wait.. i'll solve for the slope

satellite73
 2 years ago
Best ResponseYou've already chosen the best response.1take the derivative replace \(x\) by \(4\) that gives you the slope take the negative reciprocal, that give you the slope of the normal line use the point slope formula with the point \((4,6)\) to find the equation of the normal line \(y=mx+b\) then \(b\) is where it crosses the y axis

eroshea
 2 years ago
Best ResponseYou've already chosen the best response.1the value of b is the answer then?

satellite73
 2 years ago
Best ResponseYou've already chosen the best response.1yes, that is the y intecept

eroshea
 2 years ago
Best ResponseYou've already chosen the best response.1ok.. thanks.. i'll try solving for it

phi
 2 years ago
Best ResponseYou've already chosen the best response.0Here is a plot of the scenario

eroshea
 2 years ago
Best ResponseYou've already chosen the best response.1thanks! what i got was 31/5 .. is this correct?

eroshea
 2 years ago
Best ResponseYou've already chosen the best response.1i follow the steps satelite gave

phi
 2 years ago
Best ResponseYou've already chosen the best response.0I think you wandered off the path...

phi
 2 years ago
Best ResponseYou've already chosen the best response.0see the plot I posted up above

eroshea
 2 years ago
Best ResponseYou've already chosen the best response.1where is the normal line there?

eroshea
 2 years ago
Best ResponseYou've already chosen the best response.1so what do you think is wrong with my answer? is the steps given by satelite somehow have mistakes? i just followed it

phi
 2 years ago
Best ResponseYou've already chosen the best response.0what did you get for the slope ?

phi
 2 years ago
Best ResponseYou've already chosen the best response.0first, what did you get for the derivative?

eroshea
 2 years ago
Best ResponseYou've already chosen the best response.1owh wait.. i got a mistake

eroshea
 2 years ago
Best ResponseYou've already chosen the best response.1b = 46/5 .. i believe that is the correct answer now?

phi
 2 years ago
Best ResponseYou've already chosen the best response.0yes, 9.2 which matches the plot

eroshea
 2 years ago
Best ResponseYou've already chosen the best response.19.3 :)) thanks so much! help me again.. i'll post a question :)

eroshea
 2 years ago
Best ResponseYou've already chosen the best response.1yes.. divide 46 by 5 right ? then it will be 9... remainder is 15.. that will be 3.. so 9.3?

eroshea
 2 years ago
Best ResponseYou've already chosen the best response.1lol.. i got a mistake again. sorry.. yes.. 9.2
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