Linear Functions

Which of these functions are linear? Hint: 3 are linear, look carefully!

• y = 2x - 4

• y = -x² + 2

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Tags

CCSS.8.F.A.3

Dani's estimate for the cost of tiling her bathroom floor is $50 plus $3 per square foot.

Write a function in the form of y=mx+b to represent her total cost.

Tags

CCSS.8.F.B.4

CCSS.HSF.LE.A.2

Which of the following functions represent a linear function?

Choose all that apply. Hint: 3 are correct

• y=2x³

• y=0.5x-1

• y=5x+3

• y=3x²+2

• y=6x

Tags

CCSS.8.F.A.3

Eddy wrote a linear function.

Tell whether each statement is TRUE. Hint: 3 are TRUE

• The function can be represented by an equation of the form y=mx+b.

• The rate of change is always constant.

• The initial value cannot be 0.

• The graph of the function is a line.

• The graph of the function could be a vertical line.

Tags

CCSS.8.F.B.4

CCSS.HSF.LE.A.2