Find the slope of the line from the points and the graph. 15. (2,4) and (5, 13)
16. (4,5) and (9,-3)

15. m=3 16. m=-8/5 or -1.6

Step-by-step explanation:

The formula for slope is m=

so for #15

==3

and for #16

==-1.6

can you rephrase the question ? it is unclear : -)

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.