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

Step-by-step explanation:

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

$= \sqrt{(2_ }- (-1)_{ })^2 + (0_{ }- 4_{ })^2$

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

$= \sqrt{3^2+(-4)^2}$

$= \sqrt{9+16}$

$= \sqrt{25}$

$= 5 units$