Saturday

August 30, 2014

August 30, 2014

Posted by **Colleen** on Tuesday, April 5, 2011 at 11:03pm.

- Pre Algebra -
**Jai**, Tuesday, April 5, 2011 at 11:12pmx: 0 1 2 3

y: 5 4 3 2

to get the function, we choose two points. let's just choose the first two points,, that is, point1 (0,5) and point2 (1,4)

now, we get first the slope. the slope is given by the equation,

slope = m = (y2 - y1)/(x2 - x1)

where

y1 = y-coordinate of point1

x1 = x-coordinate of point1

y2 = y-coordinate of point2

x2 = x-coordinate of point2

for point1=(0,5) and point2=(1,4)

y1 = 5 , x1 = 0 , y2 = 4 and x2 = 1

substituting,

m = (y2 - y1)/(x2 - x1) = (4-5)/(1-0) = -1/1 = -1

then we substitute it in the slope-intercept form equation:

y - y1 = m(x - x1)

substituting with y1 = 5, x1 = 0 and m = -1,

y - 5 = -1(x - 0)

y - 5 = -x

x + y - 5 = 0

x + y = 5

hope this helps~ :)

**Related Questions**

Algebra - I have an input / output machine I need a rule I can use for any value...

7 th grade math - What is the rule for this function? input 1 output 3 input 2 ...

Math - Hey, I need your help! I have an input output table that I need the ...

math - i need help with patterns and equations i cant find the rule it goes like...

math - What is the rule for this function? Input 1 output 3 Input 2 output 5 ...

math - What is the rule for this function? Input 1 output 3 Input 2 output 5 ...

math - i need help! my last math question cant figure out! whats the rule for ...

Math 6th grade - I am having trouble with Input output for this problem, I can't...

math - Please help me find the rule input 0 output 2 then input 1 output 4 next ...

7th grade - write a function rule for the input-output table input X 0 1 2 3 ...