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Review : What is a linear function? What does it look like?. Linear functions are in the form of y= mx+b . They form a straight line when graphed. The x variable cannot have an exponent other than 1 and it cannot be on the bottom of a fraction. Lesson 3 (Linear Functions). Examples.

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Lesson 3 linear functions

  • Review: What is a linear function? What does it look like?

  • Linear functions are in the form of y=mx+b.

  • They form a straight line when graphed.

  • The x variable cannot have an exponent other than 1 and it cannot be on the bottom of a fraction.

Lesson 3 (Linear Functions)


Lesson 3 linear functions1

  • y=2x+4

  • d=4.5t

  • y=5x2

  • y=1/x+6

Lesson 3 (Linear Functions)


Lesson 3 linear functions2

  • Is the function represented by the following table linear?

Lesson 3 (Linear Functions)


Lesson 3 linear functions3

  • Does the equation 6x + 5y = 4 represent the same linear function as the table?

  • Does the equation x – 2y = 4 represent the same linear function as the table?

Lesson 3 (Linear Functions)


Lesson 3 linear functions4

  • Decide whether each of the following situations would represent a linear function:

    • The perimeter of a regular pentagon with a side length of x units.

    • The volume of a cube with a edge of x units.

    • The value of x nickels and x quarters.

    • The amount of a 10% commission earned on sales of x dollars.

Lesson 3 (Linear Functions)


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