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4 votes
Write an exponential function whose graph passes through
the points (0, -3) and (4, -48)

1 Answer

2 votes

Answer:


y = -3(2^(x))

Explanation:

y =
kb^(x)

Use (0, -3) to find k


-3 = kb^(0) = k(1) = k\\

So, k = -3

Now use (4, -48) to find b

-48 =
-3b^(4)


b^(4) = 16

b = 2

Since k = -3 and b = 2,
y = -3(2^(x))

User TenG
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