## Algebra 1: Common Core (15th Edition)

Y=-1000x+25000 $\fbox{2030}$
M=-1000 B=25000 You start out with 25000 bears so that is the y-intercept. The amount of polar bears declines by 1000 each year so the slope is -1000. Make an equation: y=-1000x+25000 Find when y equals 0: -1000x=-25000 x=25 $\fbox{2030}$