First person gets marked map of a town is drawn on a coordinate grid where each unit represents a mile. the middle school is located at (3, –8). marcy’s house is at (3, 2) and henry’s house is at (8, –8). does marcy or henry live closer to the school? justify your answer and show any calculations used

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.

you have to put the graph on here with the question

step-by-step explanation: