Characterize the slope of the line in the graph. A. Positive
B. Negative
C. Zero
D. Undefined

deez nu tz

step-by-step explanation:

its 50 miles away from the starting point

this is a direct variation proportion. y = kx

y is the total amount due, k is the constant of variation, and x is the number of texts sent.

plug in the 3.20 and the 16 to solve for the "k". this is the constant of proportionality. it is the value that will not change.

3.20 = k(16). solving you get $.20 per text.

the equation would then be y = .20x