Question

What is the length of the line segment CD with endpoints (-3,2) and (2,2) as shown on the coordinate plane?

A 2 units
B 3 units
C 4 units
D 5 units

Answer 1

Solution given:

(x1,y1)=(-3,2)

(x2,y2)=(2,2)

length[d]=?

we have

d=
`√((x2-x1)²+(y2-y1)²)`

=
`√((2+3)²+(2-2)²)`

=
`√(5²)`

=5units

D 5 units is a right answer.