Explain how you can use a table of values, an equation, and a graph to determine whether a function represents a proportional relationship.

From the table: you have to have the same increment for the x values and the same increment for the y values. Doesn't have to be the same increment for both x and y values.

From an equation: the exponent of the x and y should be 1. The equation should be a line equation.

From a graph: the graph should be a continuous straight line.

Step-by-step explanation:

c 1 hour

step-by-step explanation:

m = 2e

m = 2 so 2 = 2e

1 = e

step-by-step explanation:

i'm pretty sure it would take 20 hours because it's half the men so you multiply the number of hours it takes by 2