Graph the linear equation. find three
points that solve the equation, then plot
on the graph.
-5x – 3y = -7

Step-by-step explanation:

-5x – 3y = -7

(-5x-3y)+7=-7+7

-5x-3y+7=0

(-5x-3y+7)+(5x-7)=5x-7

-5x-3y+7+5x-7=5x-7

-5x+5x-3y+7-7=5x-7

-3y=5x-7

3y/3 = - 5x-7/3

y= - 5/3x + 7/3  < Answer>

10 you would take 50/ .2

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.