(1 point) (a) Find the point Q that is a distance 0.1 from the point P=(6,6) in the direction of v=⟨−1,1⟩. Give five decimal places in your answer. Q= (
5.91862665
,
5.94187618
)

(b) Use P and Q to approximate the directional derivative of f(x, y)=x+3y−−−−−√ at P, in the direction of v.
fv≈
(c) Give the exact value for the directional derivative you estimated in part (b).
fv=

solution:

the given function is ,

      =

the three roots of this quadratic function is , 0 ,8 and 10.all the roots are real and rational.

if a quadratic equation is of the form ,

sum of the roots = a + b +c= 0+8+10=18=  

product of roots taken two at a time = a b + b c+ c a = 0+80+0=80 =  

product of roots = a b c = 0=  

there are 11 doors in a hall starting from 0 to 11.the entry in the hall is permitted through gate number 0 and exit is allowed through only gate number 8 and 10.so, three roots(0,8,10) of quadratic function is given by entry and exit route of this hall.

1.3

step-by-step explanation:

3x2=6   9x+6

bring down the 6 on both sides

6+6=12

12= 9x

divide by 9

12/9 =

1.3 =x

no solution

step-by-step explanation:

there is not enough information in the problem to solve.

answer: i literally just answered this question but they want me to do it again

step-by-step explanation: