heres #2

first change it so it looks like

so

to find the y intercept set

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- Nov 23rd 2009, 11:15 PM #1

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## Just need some help please

Hi for class i have a hundred problem assignment and out of all the problems a few have stumped me i know there not difficult but i am having trouble, i just want to do really good on this assignment , if you can help thanks.

1.)The business opened with a debt of $4300. After 2 years, it accumulated profit of $4600. Find the profit as a function of time , knowing the profit function is linear.

2.)) Find the slope and the y-intercept of the line

3.)The equation of the line with slope that goes through the point can be written in the form where is

4.)Find the - and -intercepts of the graph of the equation

again thank you so uch of you can help

- Nov 23rd 2009, 11:30 PM #2

- Nov 23rd 2009, 11:37 PM #3
Hello Duffmac

Welcome to Math Help Forum! I'm not exactly sure what the question means by the word 'accumulated'. Does it mean (a) that in two years it*made*a profit of $4600, and so was now $300 in surplus? Or does it mean (b) that in two years it made enough profit to wipe out the debt and is now $4600 in surplus? (It would need to have made $8900 profit to do this.) Here are both answers.

(a) If the function is linear, then it means that the profit each year is constant. So that's per year. After t years, then, the profit will be .

(b) In a similar way, this time .

2.)) Find the slope and the y-intercept of the line

3.)The equation of the line with slope that goes through the point can be written in the form where is

4.)Find the - and -intercepts of the graph of the equation

For the -intercepts (there are two), give the value :

Grandad

- Nov 24th 2009, 11:59 AM #4

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- Nov 24th 2009, 12:04 PM #5

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