The number of bacteria in a sample increased by a factor of 1.02 every minute from the time shown in the graph. The function shows the number of bacteria in the sample f(x) after x minutes from 9:05 a. m: f(x) = 10(1.02)x

Answers:
0 < or equal to x < or equal to to 10
5 < or equal to x < or equal to 55
0 < or equal to x < or equal to 50
All positive integers
What I do not get is if it stops after 50 minutes, has anyone taken the test with this exact question.

, and

for

step-by-step explanation:

we can analyze the pattern at which the terms increase. let us denote , , , so that we can call

note the following:

the pattern: to get the next term value, we just add the next term number (e.g. 1st, 2nd, to the previous term value (term values are the given numbers in the question, 1, 3, 6, 10, 15,

from , to get to , we add

from , to get to , we add

etc.

we need to form a recursive formula, a formula that has the next term as a function of the previous term. so a possible recursive formula can be

, and for

y=3x+4

step-by-step explanation:

given the points a(0,4) and b(-4, -8)

eqn of line ab: (y-4)/(x-0)=(-8-4)/(-4-0)

(y-4)/x=-12/-4=3

y=3x+4