Answer:
Lab technician
Explanation:
Chemical used is the main independent variable. Cell growth was the dependent variable or response variable. The cell type and dose are both being tested within the experiment leaving lab technician.
Past and light because it takes a minute for light to get from one place to another
C. It led in a mass migration of African Americans to the Midwest.
Answer:
Explanation:
A line has a general equation of
where b is the y-intercept and slope of m.
Since 
is the value of y when 
, it is the point of intersection of the line with the y-axis, hence the y-intercept is 
.
We are given the slope is 
So the equation of the line is
