Question 21 of 25 What is
The lines graphed below are parallel. The slope of the red line is
the slope of the green line?
O A. - 1/2
Ов. 4
O C. -
o
D.
SUBMIT

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

it would be c. 25 units