Question

Basic Algebra 2 question

Answer 1

Im guessing do distance formula using both points to (0,0)?

Answer 2

Yes,use the distance formula.

Answer 3

Exactly!

Answer 4

Yes the distance formula.

Answer 5

Would part B be the same? How would I do it with letters?

Answer 6

Just use the distance formula, using the points (a,b) and (0,0) in one case, and (b,a) and (0,0) in the other.

Answer 7

just where you write, for example
4 and 9 in your distance equation
just swap the 4 for an 'a' and 9 for a 'b' or vice versa

:)

Answer 8

Thanks!!!

Answer 9

So would part B1 be \[\sqrt{A+B}\]
and part B2 be \[\sqrt{B+A}\]

Answer 10

The reason I am so picky is because it has to be submitted online :)

Answer 11

I would have said \[B1=\sqrt{a ^{2}+b ^{2}}\]\[B2=\sqrt{b^{2}+a ^{2}}\]
Though I would just wait for one of the above members to confirm this, (it's been a while since I covered this!)

Answer 12

What @sarahusher said ^^ :)

Answer 13

Distance formula:\[d= \sqrt{(x _{2}-x _{1})^{2}+(y _{2}-y _{1})^{2}}\]

Answer 14

The reason I did it my way is because that (0-a)^2 would be (-A)^2, which would simplify to A @sarahusher

Answer 15

Thanks for the help & correction. Why is it like that and not what I was doing?

Answer 16

Well some mathematician way before my time said that it was like that lol. Sorry I don't have a better answer.

Answer 17

(-A)^2 does not simplify to A

Answer 18

(4,9)
x2,y2

(0,0)
x1,y1

just plug and play lol

Answer 19

well technically if you explicitly defined a^2=A and b^2=B you could write it as that, however as this is not defined in the question you cannot just assume that this is the case. If your answer was written and submitted by hand you could define it to be so, however with an online submission, it's better not to risk it :)

Answer 20

Thanks so much!!!!!!!!!!!!

Answer 21

you are very welcome :)