Which function has the greatest rate of change? explain

A

Step-by-step explanation:

In Function A, Y is steadily going up by 3. Therefore, the rate of change is 3.

Rate of change is identical to slope, so using points (1,0) and (3,5), you can tell the slope is 5/2, or 2.5. 2.5 is smaller than 3, so it must be A.

Sorry about the other guy.

Learn to answer right Zemanthes or whatever your name is.

246

step-by-step explanation:

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