If f(x) = 6x + 2, then calculate f(-3).

-16

Step-by-step explanation:

f(x) = 6x + 2

f(-3) = 6(-3) + 2

6 * -3 = -18

-18 + 2 = - 16

f(-3) = -16

Step-by-step explanation:

Observe the graph provided in the exercise.

The y-axis represents the plane's elevation in meters and the x-axis represents the time in seconds.

Notice that at 0 seconds the elevation of the plane is . Based on the graph, each the elevation of the plane decreases

The plane lands when the elevation is 0 meters and this happens when the line shown in the graph intersects the x-axis.

Therefore, the time took the plane to land is: