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Write an exponential equation in the form y = abx whose graph passes through points (2, 18) and (5, 60.75).
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Write an exponential equation in the form y = abx whose graph passes through points (2, 18) and (5, 60.75).

User Williem
by
8.5k points

2 Answers

3 votes

Answer:

the answer is y=8(1.5)^x

Explanation:

User Onedkr
by
8.4k points
3 votes
y = a * b^x
18 = a * b²
60.75 = a * b^5
60.75 = a * b² * b³
60.75 = 18 b³
b³ = 60.75 : 18
b³ = 3.375
b = ∛ 3.375
b = 1.5
18 = a * 1.5²
18 = a * 2.25
a = 18 : 2.25
a = 8
Answer:
y = 8 * 1.5^x
User Dagang Wei
by
8.9k points
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