Select the graph that correctly represents the amount of money, y, Jack earns doing chores for x hours at $2 an hour if he works for a maximum of 8 hours.​

(0,0) (1,2) (2,4) (3,6) (4,8) (5,10) (6,12) (7,14) (8,16)

Step-by-step explanation:

He will earn $2 per hours, so $2 for 1 hour, $4 for 2 hours, $6 for 3 hours, $8 for 4 hours and so forth.  Look for the graph that has the points listed in the answer above.

yes because there is exactly one y value for every x value

for function there can't be more than one value for every x value

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.