Question 452262
Create a table of data:
year	time
2000	1
2005	5
2010	10
.
Plot the above three points on graph paper.
Because the dots appears to be in a straight line, you can assume it is linear.
.
Determine slope:
m = (y2-y1)/(x2-x1) using first and last points
m = (10-1)/(2010-2000)
m = (9)/(10)
m = 9/10
.
using the slope above and one point (2000,1)
plug it into the "point-slope" form:
y - y1 = m(x - x1)
y - 1 = (9/10)(x - 2000)
y - 1 = (9/10)x - (9/10)2000
y - 1 = (9/10)x - (9)200
y - 1 = (9/10)x - 1800
y = (9/10)x - 1801 (this is your equation)
.
For, 2015:
y = (9/10)x - 1801
y = (9/10)2015 - 1801
y = (9)201.5 - 1801
y = (9)201.5 - 1801
y = 1813.5 - 1801
y = 12.5 minutes