501 Geometry Questions

Set 86

Choose the best answer.

415. The origin is
     a. where the x-axis begins.
     b.where the y-axis begins.
     c. where the x-axis intersects the y-axis.
     d.does not have a coordinate pair.


416. True or False: (x 2 – x 1 )^2 + (y 2 – y 1 )^2 = (x 2 – x 1 )^2 + (y 2 – y 1 )^2


417. True or False:The distance between two points can always be
     counted by hand accurately as long as the points are plotted on
     graph paper.

(−3,–1)

(−1,–4)

(−3,–2)

(x 2 , y 2 )

(x 1 , y 1 )

(2,4)

Distance = √(x 2 – x 1 )^2 + (y 2 – y 1 )^2

D = √(− 3 − 2)^2 + (–1− 4)^2

D = √(−5)^2 + (−5)^2

D = √25 + 25

D = √ 50

D ≈ 7.1

Pythagorean theorem

a^2 + b^2 + c^2

√a^2 + b^2 = c

501 Geometry Questions