Parallel lines will have the same slope but different y-intercepts so again we can use the coordinates to determine the y intercept of the new equation.
So we know that the slope intercept formula is y=mx + b where m is the slope and b is the y-intercept so we will input the x and y coordinates to solve for b.
There will be at least 1,350 bacteria in the Petri dish in 3 hours, or at 11:00am. 8:00am: 50 bacteria 9:00am: 150 bacteria 10:00am: 450 bacteria 11:00am: 1350 bacteria