right the equation in slop-intercept form of the line that contains (4,-1) and is perpendicular to y= x+2

-x-1=y

Step-by-step explanation:

the slope of the original is 1, and the opposite reciprocal of that is -1 (slope); it has to pass through -1 on the y-axis

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.

the answer is y = 11.54

hope this : )