Question

If the trend shown in the graph continues, what will be the population of Webb County in 2015
A. 307,000
B. 278,500
C. 471,500
D. 158,000

How Does One Do THIISSS

Answer 1

The answer is B. 

First calculate slope. in this case it's  250 - 193 / 10 - 0 
That equals 5.7 
So your equation would be y = 5.7x = 193 
(193 because that's your y intercept) 
Then you just find where your line goes over 15.