Answer:
y = 1500x + 20690
Explanation:
We already know the slope. The prompt tells us that in 1996 there were 29,690 movie screens. We can write this as the point (6, 29690). We can find the y-intercept by substituting information into the point-slope formula.

Now we know that number of movie screens in 1990 was 20,690 and that it increased by 1500 each year.