Question

Find the distance between points (-1,-1) and (19,20)

a.26.17
b.4.47
c.2.24
d.29

Answer 1

D. 29

Explanation:

To find the distance between two points (x1, y1) and (x2, y2), we use the distance formula:

`\rm \: Distance = √(((x2-x1)² + (y2-y1)²))`

Here, the two points are (-1, -1) and (19, 20).

`\rm \: x1 = -1, y1 = -1`

`\rm \: x2 = 19, y2 = 20`

Using the distance formula, we get:

`\rm \: Distance = √(((19-(-1))² + (20-(-1))²))`

`= √(((20)² + (21)²))`

`\rm \: = √((400 + 441))`

`\rm \: = √(841)`

`\rm \: = 29`