21)
Which function increases 1/3
every time the x-increases by 1?
y = 3*
y = 3x + 1
y=(1/3)*
y=1/3x+1

1. 22

2. 1

3. 7

4. 18

step-by-step explanation

e2020 got it right

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.

care to share were the trapezoid shown is ?

to complete this square you have to rotate about the origin 270 degrees clockwise.