The number of streetlights in a town is growing linearly. Four months ago (t = 0) there were 44 lights. Now (t = 4) there are 92 lights. If this trend continues, (a) Find an explicit formula for the number of lights in month t. Pt = lights (b) How many months will it take to reach 238 lights? Round your answer to the nearest month. months.

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter7: Exponents And Exponential Functions
Section7.8: Transforming Exponential Expressions
Problem 12PFA
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The number of streetlights in a town is growing linearly. Four months ago (t = 0) there were 44
lights. Now (t = 4) there are 92 lights. If this trend continues,
(a) Find an explicit formula for the number of lights in month t.
Pt
lights
(b) How many months will it take to reach 238 lights? Round your answer to the nearest month.
months.
Transcribed Image Text:The number of streetlights in a town is growing linearly. Four months ago (t = 0) there were 44 lights. Now (t = 4) there are 92 lights. If this trend continues, (a) Find an explicit formula for the number of lights in month t. Pt lights (b) How many months will it take to reach 238 lights? Round your answer to the nearest month. months.
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