Sunday

December 21, 2014

December 21, 2014

Posted by **Tara** on Thursday, February 21, 2013 at 11:45pm.

1. a census was taken from 2012 to 2020. the data collected is given in the following table. 2012-2020

L1 l2

0 6000

1 6300

2 6615

3 7012

4 7362

5 7878

6 8429

7 9272

8 10199

a) what is the exponentail equation for the data (is it P=pe(rt)

B) Using your calculator determine the predidcted annual population to the nearest whole number in the year 2030.

2. A student fires a model rocket into the air. The rocket reaches a maximum height of 24.8 meters and lands 55 meters from the student. (assume parabola)

a) list thress points on the trajectory

b) determine the regression equation that best fits the trajectory using your graphing calculator.

I have spent the last two hours on this please help me walk through this as i really jsut want to know how to do this

- Math - graphing -
**Steve**, Thursday, February 21, 2013 at 11:50pmYes, the general equation is P=pe^(rt), or P=p*k^t

If that's the equation, then the terms form a geometric sequence, since each is k times the one before. Let's examine the ratios:

6300/6000 = 1.05

6615/6300 = 1.05

...

Looks like P = 6000 * 1.05^t

If ou want it in terms of e^x, then since 1.05 = e^(ln 1.05)

P = 6000 * e^(ln 1.05 * t) = 6000*e^(.049t)

where t is years since 2012

- Math - graphing -
**Tara**, Friday, February 22, 2013 at 10:32amso i came up with 14440 people rounded to the nearest whole number.

is there a way to check the formula by using the previous information?

**Answer this Question**

**Related Questions**

math (graphing) - I need to graph "y = -2x+5" and "y = 4/5x-3"... I don't think ...

ALGEBRA - i AM HAVING TROUBLE GRAPHING SOLVING THE FOLLOING BY GRAPHING. cAN ...

Trigonometry - I'm having a lot of trouble with graphing trig functions. Can ...

graphing calculator - anybody have a graphing calculator on them? Can you please...

pre-calculus - In the following exercise, find the smallest interval for theta [...

Algebra 1 - Hello. I am having a bit of trouble understanding the following "...

Algebra 2 - I need help with this problem because I do not have a graphing ...

Math - I have a problem in graphing that says: Find 2 numbers that satisfy this ...

another problem - what is the square root of 3.467 x 10^8? I relaly do not know ...

Precal - what should "window" be on the graphing calculator when graphing x^3-x^...