IM Unit 4 Lesson 2: Points on a Graph in a Situation

Front

What does the equation f(x) = 2.1x + 86 represent?

Back

The temperature in degrees Fahrenheit of a scientific sample being warmed as a function of time in seconds.

Front

What does x represent in the equation f(x) = 2.1x + 86?

Back

The time in seconds after the sample is placed in the warming machine.

Front

What does f(x) represent in the equation f(x) = 2.1x + 86?

Back

The temperature in degrees Fahrenheit of the sample.

Front

What is the starting temperature when x = 0 in the equation f(x) = 2.1x + 86?

Back

86 degrees Fahrenheit.

Front

What does it mean if x = -3 in the context of the equation f(x) = 2.1x + 86?

Back

It does not make sense because time cannot be negative.

Front

If x = 2, what is the temperature according to the equation f(x) = 2.1x + 86?

Back

90.2 degrees Fahrenheit.

Front

What does the point (60, 212) on the graph of f(x) = 2.1x + 86 indicate?

Back

In 60 seconds, the temperature is 212 degrees Fahrenheit.

Front

What is the significance of the slope (2.1) in the equation f(x) = 2.1x + 86?

Back

It represents the rate of increase in temperature per second.

Front

What value for y does not make sense in the context of the equation f(x) = 2.1x + 86?

Back

82 degrees Fahrenheit, as it is below the starting temperature.

Front

What is the coldest temperature mentioned in the context of the questions?

Back

12 degrees Fahrenheit.