Which system of inequalities represents the graph? o
y-6-113
y+3x >-4
-2.0 + 3y > 15
y +113 > 6
y+4< -3.0
-2x + 3y <15
1+
-10-9-8-7
6
32 to
2 3
6
8
9 10
y-6-113
y+33-4
-2x + 3y <15
-4
D
-6
-74
y +11> 6
y+4> -3.0
-2x + 3y > 15
-8
-9
-10

answer

the correct answer is

explanation

the given function is

the excluded values are obtained by solving:

we factor to obtain:

the excluded values are

answer: i think it is (1,-2)

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.