Which equation represents a line which is perpendicular to the line 2x + y = -5?

Step-by-step explanation:

Given expression;

   2x + y  = -5;

  The given equation must be written in a form where the slope is the negative inverse of the given one.

A line perpendicular to another will have a negative inverse slope.

   2x + y  = -5

  Equation of a straight line is generally written as;

       y  = mx + c

y and x are the coordinates

m is the slope

c is y - intercept

          2x + y  = -5

                 y  = -2x -5

 The slope of the perpendicular =

So,

the new line;

            y  =  x  -5

Any line with slope of   will be perpendicular

$8

step-by-step explanation:

it is pretty much backwards.

you take the 4x2 multiply that, and that is = $8

yes because there is exactly one y value for every x value

for function there can't be more than one value for every x value