Richard has a picture of a scenic mountain view that measures 3 in. x 5 in. He wants to display an enlarged version of the photo in his living room. The holds images that are up to 11 in. x 14 in.
How many times larger can Richard enlarge his photo
he can fit the largest photo possible into the frame?

              3x5= 15

              11x14=154

              15+154=

>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>

              204 inch

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.