I am doing a warm up and got stuck on a function question
x : 2 3 4
f(x): 2 1 0

Can someone help me figure out the function rule?

  1. 👍 0
  2. 👎 0
  3. 👁 153
  1. y decreases as x increases, so start with

    y = -x
    Since y(2) is 2, and not -2, add 4:
    y = 4-x

    1. 👍 0
    2. 👎 0
  2. I get it. So it's like 4-2= 2, 4-3= 3, and 4-4= 0 . I thought it was saying that y is y(x), that just stands for the name of the function. The function rule is something different. Thanks so much for your help, Steve.

    1. 👍 0
    2. 👎 0

Respond to this Question

First Name

Your Response

Similar Questions

  1. Health

    1. The muscular system is essential because it allows our bones to strengthen contract lengthen move 2. which muscle is attached to a bone by tendons? smooth muscle cardiac muscle skeletal muscle involuntary muscle 3. To prevent

    asked by help asap on November 13, 2014
  2. math help!!!

    stuck!! pls help/explain!!! 2. Do the values in the table represent a linear function? If so, what is the function rule? (1 point) x = -2, 0, 2, 4 y = -4, 0, 4, 8 The values do not show a linear function. Yes, they show a linear

    asked by TTR+S<3 on May 7, 2014
  3. science (correct please)

    (1) Which of the following is an ectothermic vertebrate A) butterfly B) lizard C) eagle D) dog ~~~~~~~~~~~~~~~~~~~~~~~~~ My answer: B ~~~~~~~~~~~~~~~~~~~~~~~~~ (2) which of the following animals is an invertebrate? A) goldfish B)

    asked by Yuno Gasai on April 13, 2016
  4. Calculus (Continuity and Differentiability)

    Okay. So I am given a graph of a derivative. From what I can gather, it looks like the function might be abs(x-2)-4. (I was not given an explicit function for g', just its graph.) The question then goes on to ask me: Is it

    asked by Mishaka on November 12, 2011
  5. Calculus

    Answer the following questions for the function f(x) = sin^2(x/3) defined on the interval [ -9.424778, 2.356194]. Rememer that you can enter pi for \pi as part of your answer. a.) f(x) is concave down on the interval . I'm really

    asked by Anonymous on November 2, 2011
  1. Calculus(urgent please help)

    Consider the following function f(x)=x^2/[x^2-9] f(x) is increasing on the interval(s) f(x) is decreasing on the interval(s) f(x) has 2 vertical asymptotes x= f(x) is concave up on the interval(s) f(x) concave down on the

    asked by Ryan kustin on April 10, 2015
  2. Math

    A quadratic function has a vertex of (3,-6) and the point (-1,10) lies on the graph of the function. Write the function in standard form. If you could help me with this question, that would be great. Thanks in advance.

    asked by Heaven on April 24, 2016
  3. Social Studies

    On the map what do we look at to determine the distance between two places? 1. The Key 2.The Scale 3.The Title 4.The Compass Rose Can you please help me with this question I've been stuck on this question for a while, and I can't

    asked by Jasmine on October 19, 2017
  4. 6th Grade Math Help & FAST!!!

    I only have 2 questions. 1 is multiple choice and one I have to type so please help. 1. Which set of output values correctly completes the function table? This is the function table: y= 2x - 4. Input (x) 6, 2, -4. Output (y) those

    asked by MusicLover14 on April 14, 2015
  5. Algebra 2B

    Come up with a new linear function that has a slope that falls in the range −< < 1 0 m . Choose two different initial values. For this new linear function, what happens to the function’s values after many iterations? Are the

    asked by Brittney on October 1, 2016
  6. Literature

    i've read the story "Everything Stuck To Him" and in the beggining there is a couple and the girl wants to know about when she was a kid. the boy tells her a whole story about when she was a baby and what went on between her

    asked by Bella on February 5, 2009

You can view more similar questions or ask a new question.