Distance Formula with variable?

0 ⤊

Distance Formula with variable?

The distance from (3,4) to (t,8) is 4radical 2. What is the value of t?

2007-03-27 11:50:14 · 3 answers · asked by dee 2 in Education & Reference ➔ Homework Help

3 answers

D = sqrt( (x2 - x1)^2 + (y2 - y1)^2 )

4sqrt(2) = sqrt( (8-4)^2 + (t - 3)^2 )

square both sides

32 = 16 + (t - 3)^2
16 = (t-3)^2
+/-4 = t-3
t = 7 or -1

2007-03-27 12:10:00 · answer #1 · answered by 7 · 0⤊ 0⤋

you do 4 radical 2 = the square root of [(t-3) squared + (8-4) squared]
and solve it.
sorry if that doesn't help.

2007-03-27 12:13:00 · answer #2 · answered by Anonymous · 0⤊ 0⤋

d = r * t

2007-03-27 11:57:23 · answer #3 · answered by jennifermlayne 2 · 0⤊ 2⤋