3. + 1.66 points SPrecalc7 1.10.087·MI My Notes Some scientists believe that the

Question

3. + 1.66 points SPrecalc7 1.10.087·MI My Notes Some scientists believe that the average surface temperature of the world has been rising steadily. The average surface temperature can be modeled by T-0.02t + 15.0 where T is the temperature in °C and t is years since 1950. (a) What do the slope and T-intercept represent? The slope represents the increase in the average surface temperature in oC per year, and the r-intercept is the average surface temperature in 950. orisc The slope represents the decrease in the average surface temperature in °C per year, and the T-intercept is the average surface temperature in 1950, or 15°C. O The slope represents the average surface temperature in °C per year, and the T-intercept is the increase in surface temperature in 1950, or 15°C O The slope represents the average surface temperature in °C per year, and the T-intercept is the decrease in surface temperature in 1950, or 15°C O The slope represents the change in the average surface temperature in °C per year, and the T-intercept is the predicted surface temperature in year 2015 (b) Use the equation to predict the average global surface temperature in 2100. (Round your answer to the nearest degree.) oC Need Help? Read ItMaster It

Explanation / Answer

a. Here slope is 0.02 which is positive, and T intercept means the initial temperature that is temperature in 1950.So correct option is the first one.

b.T=0.02t+15

t=2100-1950=150

T=0.02(150)+15=18 degree C

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