What kind of slope does the following line have?
Negative
Zero
Positive
Undefined
Apply concepts of slope and y-intercept to graphs, equations and proportional relationships.
Explain why the slope (m) is the same between any two distinct points on a non-vertical line in the Cartesian coordinate plane.
Derive the equation y = mx for a line through the origin and the equation y = mx + b for a line intercepting the vertical axis at b.