Question

How do you find the absolute value of `-7+i`?

Answer 1

`5sqrt2`

Explanation:

`"the absolute value of " z=x+yi" is "`

`|z|=|x+yi|=sqrt(x^2+y^2)`

`rArr|-7+i|`

`=sqrt((-7)^2+1^2`

`=sqrt50`

`=5sqrt2`