What is the equation of a line through (-1 4) and (1 -2)

At which value in the domain does f(x) =0?

Find the dimensions of the circle. area = 64π in.² r= in.

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?