Pleas help me I’m terrible at algebra

-2x + 4y - 2z

Step-by-step explanation:

as you can see, the graph indicates which axis belongs to x, y, and z and also gives information on the positive and negative directions of each axis.

to get the answer, all you have to do is find each coordinate,

x is at -2, y is at +4, and z is at -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.