Find the equation of the line. Write in slope intercept form and in standard form (Show your solution) 1. M = -4, b = 1 2. (1, -2) , (3, 3) 3.(-2, 0), (0,5 4.A = 2, b = -7 5. M = 2, (3, -1)

The scatter plot shows the number of animal cells clara examined in a laboratory in different months: plot ordered pairs 1, 20 and 2, 60 and 3,100 and 4, 140 and 5, 180 what is the approximate predicted number of animal cells clara examined in the 9th month?