Question

Which variable in the equation below represents the y-intercept?

y = mx + b

Answer 1

This is a definitions thing... Got to memorize it. :-)

y = y-coordinate (dependent)
x = x-coordinate (independent)
b = y-intercept, vertical shifting the graph up/down
m = slope

and

Average slope:
\[m=\frac{\triangle y}{\triangle x}=\frac{y_2-y_1}{x_2-x_1}\]

Answer 2

Learn it! :-D

Answer 3

the answer chooses are x,y,m,b