A triangle has vertices located at P(4, 6), Q(4, 10), andR(10,4).
What is the length of side PQ?

i used to know how to do this in 7th but i forget easily

step-by-step explanation:

i hope this is what you were looking for.

see attached graph

step-by-step explanation:

we have

using a graphing tool

see the attached figure

this is a quadratic equation (vertical parabola) open up

the vertex is a > vertex

the domain of the function is all real > interval (-∞,∞)

the range of the function is the > [-6.125,∞)

the function has two x->   and

the function is increasing over the > (0.25,∞)

the function is decreasing over the > (-∞,0.25)