Question

What the distance between (2,1) and (-5,8)

Answer 1

Exact form = 7 √2
Decimal form= 9.899

Answer 2

`√(98)` or 9.89949

Explanation:

use the distance formula

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

d=
`\sqrt{(-5-2)^(2)+(8-1)^(2) }`

d=
`\sqrt{(-7)^(2) +(7)^(2) } \\\\√(49+49)`

d=
`√(98)` or 9.89949