SOLUTION: How do you figure out the equation of a line modeled by the table like: x y 0 -5 1 -1 2 3 3 7

Algebra.Com
Question 117506: How do you figure out the equation of a line modeled by the table like:
x y
0 -5
1 -1
2 3
3 7

Answer by solver91311(24713)   (Show Source): You can put this solution on YOUR website!
Use the two-point form of a line.
First, choose two of the specified points. Let's pick the first two (0,-5) and (1,-1).

Then get the two-point form:

,

And plug in the numbers from the coordinate values in the points chosen.



Do the arithmetic:




Then, just to be neat, put your equation into either standard form or slope-intercept form



Use one of the other points in your table to check your work.
, yep!

RELATED QUESTIONS

how do you find the domain and range in a table.... x 1 3 5 7 9 y 0 1 2 3... (answered by quentin252)
I have to look at a table and decide if its a function or not. The table looks like this: (answered by stanbon)
How do we find the points for the equation y=(1.2)^(-x)sinx I mean can you please tell... (answered by Fombitz)
Hi there. I have a system, and I have tried to solve it two ways: substitution and table... (answered by rapaljer)
Take a look at the table below and write out an equation for f(x). I put ":" and commas... (answered by 303795)
I am having trouble with a function table. x Input y is the... (answered by drk,jim_thompson5910)
d) Suppose you want to add a sprinkler system, and the location of one section of the... (answered by gonzo)
Please help me solve this problem. There's a table, and it looks kind of like this: x (answered by solver91311,scott8148)
Take a look at the table below and write out an equation for f(x). x: -2, -1, 0,... (answered by stanbon)