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Linear and Non Linear Functions

In this topic, we will learn to identify and graph linear and non linear functions.
Practice Question
1

The temperature of a liquid is increasing at the rate of 40C per hour. When John begins measuring the temperature, it is 400C. Write a linear function that describes the temperature of the liquid over time.

 
Possible Answers
Your Answer
Correct Answer
A)

y = 4x
B)

y = 4x + 40
C)

x = 4y
D)

y = 4x - 40
Practice Question
2

A freight train travels 40 miles per hour. Write a linear function that describes the distance the train travels over time.

 
Possible Answers
Your Answer
Correct Answer
A)

y = 40x
B)

y = x + 40
C)

x = 4y
D)

y = x - 40
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