The scatter plot gives the average atmospheric concentration of a gas and the average global temperature for six selected years. Shown on the scatter plot is a line that passes through or near the six points. Use this line to answer the questions in parts a. to d. (A calculator is recommended.) Concentration of a Gas and Global Temperature 58.2- 8 58.0- (383,57 94 57.8 57.6 a. Use the two points whose coordinates are shown on the graph to write the point-slope form of the line that models the average global temperature, y, for an atmospheric gas concentration of x parts per million. 57.4- 57.2- 929 04 The point-slope form of the equation is (Simplify your answer. Use integers or decimals for any numbers in the equation. Round to two decimal places as needed.) 57.0- 56.8- 310 320 330 340 350 360 370 380 390 ncentration of a Gas Aver age Global Temperature in D egre es

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