Can someone write the point slope equation

okay so, first what is the slope of the line? you have stated it is -1.

so now we have a point on the line (x1,y1) = (4, -9), so now we can use:

y-y1 = m(x-x1)

y - (-9) = -1 (x - 4)

y + 9 = -x + 4

y = -x + 4 -9

y = -x -5

Let's check. If x = 4, then

y = - (4) -5 = -9

seems to be correct

sine

step-by-step explanation:

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