How is this stuff Algebra 1 but please help me ASAP

k(x)

Step-by-step explanation: I haven’t done Alg. 1 for a while, but I’m pretty sure that k(x) is the answer... when you have a negative in the parenthese, the line moves to the right. I hope this is correct and that it helps!

answer: the first graph

step-by-step explanation:

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.