PLEASE HELP ASAP WILL GUVE BRAINLIEST PLEASEE

Step-by-step explanation:

For two lines to be perpendicular to each other the product of their slopes must be -1.

First we need the slope of the reference line. Since

y=mx+b, where m is the slope and the line we are given is

y=2x-4

So we know the slope is 2. So our perpendicular will satisfy

m1(m2)=-1

2m=-1

m= -1/2

So now our line is

y=-x/2+b, using point (0,-7)

-7=-0/2+b

-7=b, now we have the complete line

y=-x/2-7

(Or more neatly)

y=(-x-14)/2

linear pair postulates

hello from mrbilldoesmath!

answer:

the domain is the set { -2, 0, 2, 3}

discussion:

the domain is the set of x values in the ordered pairs (x,y). taking the x, or first component, of each ordered pair gives   -2, 0, 2, 3.

you,

mrb