Question

i need help setting up a system of equations...

Answer 1

A biologist is comparing the growth of a population of flies per week to the number of flies an iguana will consume per week. He has devised an equation to solve for which day (x) the iguana would be able to eat the entire population. The equation is 3x = 2x + 1. However, he has observed that the iguana cannot eat more than eight flies in one week.

Explain to the biologist how he can solve this on a graph using a system of equations. Identify any possible constraints to the situation.

Answer 2

Sorry. Correction ***the equation is 3^x = 2x + 1

Answer 3

http://www.wolframalpha.com/input/?i=solve+using+system+of+equations+3%5Ex+%3D+2x+%2B+1

Answer 4

That helps a little. But would x=0 or x=1 be a solution?

Answer 5

well did you even try to see which one works ?

Answer 6

If 3^0 = 1 and 2*0+1 = 1
3^1 = 3 and 2*3+1= 7
Then which one is true

Answer 7

@alante14

Answer 8

Im confused because I thought the iguana had to eat 8 flies...

Answer 9

The iguana cannot eat no more than 8 flies not exactly 8 flies

Answer 10

ok, thanks :)

Answer 11

In one week so .. each day the iguana eats about 1 fly lol @alante14

Answer 12

Just read the question it's asking you

Answer 13

@alante14 are you still confused ?

Answer 14

im trying to work it out. so...ive got y= 3^x and y= 2x+1 written down. and i know the iguana eats like one fly a day now. and the constraint would have to be 8, right??

Answer 15

yes

Answer 16

thanks again