Complete the point-slope equation of the line through (-8,-8) and (-7,9).
Use exact numbers.

Step-by-step explanation:

m=Y2-Y1/X2-X1

m=9--8/-7--8= 16/15

y-b=m(x-a)

y--8=16/15(x--8)

y+8=16/15(x+8)

15y+120=16(x+8)

15y+120=16x+128

15y=16x+8

y=16/15x+8/15

b

step-by-step explanation:

a difference is the result of subtraction. while each of these expressions has subtraction in it, a difference will be the result when subtraction is the last operation applied in the order of operations for the expression. this means subtraction must be outside of the parenthesis. only b has this.

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.