Determine if the pair of lines are parallel or perpendicular.

I’m confused on how to work the pie charts

Given the following linear function sketch the graph of the function and find the domain and range. ƒ(x) = -5x + 4

Which best describes the function on the graph? direct variation; k = −2 direct variation; k = -1/2 inverse variation; k = −2 inverse variation; k = -1/2