the accompanying table shows two measurements for the length and cost of long-distance telephone calls, which have a linear relationship.
Length of call, x [in minutes] 10 16
Cost of call. Y $18.06 $28.86
2007-05-19 09:36:23 · 4 answers · asked by the end 2 in Education & Reference ➔ Homework Help
I think you may be missing some vital information here that may prevent anyone from providing you with the assistance you desire. Good luck.
2007-05-19 09:42:39 · answer #1 · answered by soulguy85 6 · 0⤊ 0⤋
If you are trying to work out the relationship use the difference method
When x changes by 6, y changes by 10.8
Therefore the coefficient of x=10.8/6
=1.8
So we know that the formula for y = 1.8x + constant
The constant = 0.06 because that is the value you need to add on to get the value of y in the table, when u multiply 10 and 16 by 1.8
so the formula is y=1.8x+0.06
Hope that helps!
2007-05-19 16:45:42 · answer #2 · answered by razza c 2 · 0⤊ 0⤋
what are you trying to figure out?
2007-05-19 16:38:35 · answer #3 · answered by tamgigem08 2 · 0⤊ 0⤋
wat?
2007-05-19 16:39:05 · answer #4 · answered by jf 2 · 0⤊ 0⤋