Circle the correct word or phrase in each pair. (2 points) A straight line has a (constant / changing)...

1. Circle the correct word or phrase in each pair. (2 points)
A straight line has a (constant / changing) slope.
The slope represents the rate of change / congruence) between the two (quantities / qualities).
The graph of a (proportional relationship / nonproportional relationship) passes through the origin.
In the equation (y = mx), m represents the (slope / y-intercept).
2. Use the information provided to find the slope of each line. Show your work! (1 point each)
a) 1 piece weighs ______ ounces.
b) 1 ticket costs ______ dollars.