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PAGE: 88SET: ExercisesPROBLEM: 1
Please look in your text book for this problem Statement

Treat the data as ordered pairs. From the table, write the Altitude as x - coordinate and the Temperature as y - coordinate.

Plot the ordered pairs as points in a coordinate plane.

The scatter plot shows a negative correlation between x and y. This means that as the x - values increased, the y - value tended to decrease, so you can fit a line to the data.

Draw a line that appears to fit the points in the scatter plot closely.

graph the points (0, 15), (1000, 13), (2000,11), (3000,91), (4000,71)

Write an equation using any two points on the line.

Substitute the values of in the slope formula .

.

To write the line equation, we can use either of the two given points.

Consider the point .

Substitute in point-slope form equation or .

Apply distributive property: .

Add 11 to each side.

.

The line equation is .

Substitute the value of in the above equation.

.

The missing value is , the equation is and its graph isgraph the points (0, 15), (1000, 13), (2000,11), (3000,91), (4000,71)



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