Question

Point C has the coordinates (-1,4) and point D has the coordinates (2,0). What is the distance between points C and D? Is ____ units

Answer 1

Answer: 5 units

Explanation:

`Distance = \sqrt{(x_(2 )- x_(1 ))^2 + (y_(2 )- y_(1 ))^2\\`

`= √((2_ )- (-1)_( ))^2 + (0_( )- 4_( ))^2`

`= \sqrt{(2_( )+ 1_( ))^2 + (-4)^2_`

`= √(3^2+(-4)^2)`

`= √(9+16)`

`= √(25)`

`= 5 units`