Which equation represents an exponential function that passes through the point (2, 36)?
f(x) = 4(3)
f(x) = 4(x)
f(x) = 6(3)
f(x) = 6(x)
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i think the answer is .36

step-by-step explanation:

what i did was only 2.88 divided by 8

ou would have 12 of each

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