# Algebra

Hello! This is a question from my math practice worksheet, and I have no clue how to solve it. Any and all help is greatly appreciated!

The table shows a hospitalâ€™s patient count for two successive days. Write a linear function using the data (with x representing the day number), and then use the model to predict the patient count on Day 3.

Day 1: 295
Day 2: 272

Thank you!!

1. 👍 0
2. 👎 0
3. 👁 305
asked by Amy
1. Please help!:)

1. 👍 0
2. 👎 0
posted by Amy
2. Ms. Sue ?

1. 👍 0
2. 👎 0
posted by Amy
3. Anyone?

1. 👍 0
2. 👎 0
posted by Amy
4. treat it like two ordered pairs
(1,295) and (2,272)

slope = (272 - 295)/(2-1) = - 23
so equation in the form y = mx + b

would be

count = -23x + b , were x is the day number
so using (1,295)
295 = -23(1) + b
b = 318

count = -23x + 318

so on day 3 , x =3
count = -23(3) + 318 = 249

Of course we could have done this without finding the equation. Since there is a decrease of 23 for each day, all we had to do is decrease the count from day 2, which was 272, by 23 to get 272-23 =249

This is a very silly question. How can the number of patients be a linear function where the number of patients decrease by 23 every day ?
It makes no sense.

1. 👍 0
2. 👎 0
posted by Reiny
5. Thank you so much!! Yes, I agree. This could have just been solved by using subtraction...

1. 👍 0
2. 👎 0
posted by Amy
6. May I ask you another question?

1. 👍 0
2. 👎 0
posted by Amy
7. of course

1. 👍 0
2. 👎 0
posted by Reiny
8. Ok! Here it is:

Find the x and y intercepts of the line x+y=3.

1. 👍 0
2. 👎 0
posted by Amy
9. to get the y-intercept, let x = 0, that would leave you with y = 3
for the x-intercept, let y = 0 , that would leave you with x = 3

if the equation is of the form
Ax + By = C
do the same thing, usually you can do it your head

e.g. 5x + 3y = 20
x-intercept is 4
y-intercept is 20/3

1. 👍 0
2. 👎 0
posted by Reiny

## Similar Questions

1. ### math

This is the question that is on my worksheet If Stephanie is scheduledto begin practiceat 12:30p.m., what is the latest time in which she could start getting ready to leave? How long does it take Stephanie to get ready? How long

asked by Brooke on November 30, 2006
2. ### Beginning Algebra

We had a substitute in math on friday and we got a worksheet, but he didn't explain how to do it very well. Could someone work out a problem for me? 1. (2b^3)^3 * 3(b^-4)^2 = I have no clue how to do this. The answer key says it

asked by Nicole-Marie on September 15, 2007
3. ### algebra

I have a math worksheet and it is SO confusing. can anyone help. the question on the worksheet is IN MUSIC WHAT DOES "ALLEGRO" MEAN? it's page 190. PPPPLLLLLLLLZZZZZZZZ. like right now i need the answer. i looked it up on google

asked by Hailey on May 5, 2012
4. ### ghost in city hall

Hello all. Does anyone have a scanned copy of "ghost in city hall" worksheet? It is a math worksheet. Thank you, Sandy

asked by sandy on April 26, 2008
5. ### Math

I'm trying to figure out a Math pizzazz worksheet. I can't get the answer to question #3 on page E-38-E

asked by Expresso 55 on December 1, 2013
1. ### help me for this stupid worksheet

the question is.. why did the ghost decide to haunt city hall? urgh i don't fee like doing it so im hoping someone has the answer :] You might have gotten an answer if you'd told us the source of your question. To which story,

asked by brooke on January 31, 2007
2. ### Math

Can somebody help me out here. I want to know why I am good with math problems but I don't get word problems until it is made out of a equation. The reason is that you have learned math as procedures and facts...math as a form of

asked by Miss Strawberry on August 29, 2005
3. ### math 12

Here is question on an math assignment I was given, I have no clue what it is even asking. It's a Challenge Yourself question, I've typed it exactly how it is on my paper: A student is having difficult figuring out what is wrong

asked by M on September 7, 2014
4. ### algebra

Factor by grouping even though it would seem reasonable to first combine like terms. 30b^2 + 25b + 36b + 30 = This practice question I have no clue how to do, please help!! Thank you

asked by slomo on February 2, 2015
5. ### MATH OMG HELP PLEEESE

Sarsh is currently at 83.7% in math. She has just finished a worksheet that is out of 30. She got 30/30 which is full marks. What percent is she at now in math? I HAVE NO IDEA!!!!!!

asked by WINNIE on November 28, 2012

More Similar Questions