Find the centroid of the triangle with these vertices: P (−2,8), Q (12,6), and R (5,4).

(5,6)

Step-by-step explanation:

Here,

P(-2,8)=(x1,y1)

Q(12,6)=(x2,y2)

R(5,4)=(x3,y3)

Now,

G(x,y)=[x1+x2+x3|3,y1+y2+y3|3]

=[-2+12+5|3,8+6+4|3]

=[15|3,18|3]

=(5,6)

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