Which of the following exponential functions goes through the points (1, 12) and (236)

y = 4

Step-by-step explanation:

For an exponential function in the form

y = a

Use the given points to find the values of a and b

Using (1, 12), then

12 = ab → (1)

Using (2, 36), then

36 = ab² → (2)

Divide (2) by (1)

= , then

3 = b

Substitute b = 3 into (1) for value of a

12 = 3a ( divide both sides by 3 )

4 = a

Thus

y = 4 ← is the exponential function

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