SOLUTION: how to create a formula on this table: x y 2 -3 4 5 6 13 8 21

Algebra ->  Angles -> SOLUTION: how to create a formula on this table: x y 2 -3 4 5 6 13 8 21       Log On


   

Question 1180911: how to create a formula on this table:
x y
2 -3
4 5
6 13
8 21
Answer by MathLover1(20850) About Me  (Show Source):
You can put this solution on YOUR website!

how to create a formula on this table:
x y
2 -3
4 5
6 13
8 21
use equation in point slope form
y-y%5B1%5D=m%28x-x%5B1%5D%29
use two given points to find a slope m
2 -3
4 5
m=%285-%28-3%29%29%2F%284-2%29
m=8%2F2
m=4

so far we have
y-y%5B1%5D=4%28x-x%5B1%5D%29......use one point, 6 13
y-13=4%28x-6%29
y-13=4x-24
y=4x-24%2B13
y=4x-11=> your formula