Write an equation of a horizontal line passing through the two points (-2,-3) and (2,-3)

y = -3

Step-by-step explanation:

The first thing you should know is that a horizontal line always has a slope of 0. When the line is horizontal, the y coordinate never changes. So, your equation in slope intercept is:

y = -3

Step-by-step explanation:

hello :

Use the point-slope formula.

y - y_1 = m(x - x_1)

m=0 ( horizontal line)   and x_1 = 2    y_1 = -3

y-(-3) = 0(x-2)

y+3=0 is an equation

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.