Answer:
The exponential growth function is
Step-by-step explanation:
Given: The population of a certain city was 145,380 in 2000 and 219,135 in 2010.
To find: exponential growth function that models the growth of the city
Solution:
The exponential growth function is given by
Here, P denotes total population after time t
denotes initial population
k denotes rate of growth
t denotes time
As ,
As
Answer:
C. y = -4x +10
Step-by-step explanation:
Equation of a line is found by the formula y = mx +b
Where m is the slope and b is the y intercept
we see that y-intercept is given as 10, so b = 10 and we plug in the coordinate (2,2) into the equation to find the slope (m). We plug in x = 2 and y = 2. Shown below:
<em>We know the value of m to be -4 and b to be 10, thus we can write the equation as:</em>
Answer choice C is right.