Pre Algebra

posted by .

What is the function rule when the input is 0,1.2.3 and the output is 5,4,3,2?

  • Pre Algebra -

    x: 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~ :)

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

  1. Math

    Hey, I need your help! I have an input output table that I need the function rule for. The table is like this: Input: 0 Output: 25 Input: 100 Output: 35 Input: 200 Output: 45 Input: 300 Output: 55 Input: 400 Output: 65 PLEASE I NEED …
  2. Algebra

    I have an input / output machine I need a rule I can use for any value, like 10 or 100 input 1, output 3 input 2, output 6 input 3, output 12 input 4m output 24
  3. math

    i need help with patterns and equations i cant find the rule it goes like dis input 0 out put 25 input 1 output 24 input 2 output 23 input 3 mising output input 4 missing output
  4. 7 th grade math

    What is the rule for this function? input 1 output 3 input 2 output 5 Input 4 output 9 Input 5 output 11 Input 10 output 21 Input 12 output 25 Please help now thanks
  5. math

    What is the rule for this function? Input 1 output 3 Input 2 output 5 Input 4 output 9 Input 5 output 11 Input 10 output 21 Input 12 output 25 Please help thanks
  6. Math

    What is the rule for this function? input 2 output 5 ,input 4 output 13, Input 6 output 21, Input 8 output 29, Input 10 output 37 Please help now thanks
  7. Math

    What's the rule the function machine using, input 22,output 12,input 23,output 16,input 24,output 20,input 25,output24,input 26,output 28
  8. Computer Science

    What is the rule for this function? input 1 output 2 input 2 output 5 Input 3 output 12 Input 4 output 34 Input 5 output 135 Input 6 output 741
  9. math

    What is the rule for this function? input 1 output 2 input 2 output 5 Input 3 output 12 Input 4 output 34 Input 5 output 135 Input 6 output 741
  10. math

    What is the rule for this function? input 1 output 2 input 2 output 5 Input 3 output 12 Input 4 output 34 Input 5 output 135 Input 6 output 741

More Similar Questions