Compute the distance between (7,-4,9) and (x, y,z).
a. (7 + x)2 + (-4 + y)2 + (9 + 2)2
b. (7 - x)2 + (-4 - y)2 + (9 - 2)2
C.
d.
7- x) + (-4-y) + (9 -23
(7+ x)2 + (-4+ y)2 + (9+ 2)2

Option b:

Let two points be:

The distance formula is defined as:

Therefore, if we define:

Finally, correct option is b

The Answer is correct, he just has the wrong letter.

Step-by-step explanation:

The correct answer is C

step-by-step explanation:

use pothagarean therom

a^2+b^2=c^2 so first ac

acm is a right triangle because c= 90°

and am (the hypotenuse or c) =16+9 =25

but there is not enough info we need another angle or side length

i got so much points from yo a.