# calculus

Some scientists believe that the average surface temperature of the world has been rising steadily. They have modeled the temperature by the linear function T = 0.02t + 8.75, where T is temperature in °C and t represents years since 1900.

(a) What do the slope and T-intercept represent?

The slope is _______ , which means that the average surface temperature of the planet is increasing or decreasing at a rate of ______°C per year. The T-intercept is _______ , which presents the average surface temperature in the year _______ .

(b) Use the equation to predict the average global surface temperature in 2100.
°C

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1. think back to your Algebra I and these answers should be clear. Any ideas?

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posted by Steve

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