The distance between two points on a coordinate plane can always be found by subtracting their x- or y-coordinates. true or false.

This one's a tricky one.  Subtracting the respective coordinates is the first step.  But that in itself doesn't give the distance; there's some squaring and adding and square rooting to do.  I'm going to go with

false

Rather than worry about this confusing question, let's review the distance formula.  I find it easier to think of as the Pythagorean theorem.   The distance r between points (a,b) and (c,d) satisfies

When I'm doing math I usually try to avoid taking a square root.  But if we're asked directly for the distance, it's often unavoidable:

5x10^11 x 65

325 x 10^11

or

325,

answer is b.

15

i got this one as well.