Review Functions

Is this function linear or non-linear?

• Linear. The equation is y = x³.

• Non-Linear. There is no y-intercept.

• Linear. It has a constant rate of change.

• Non-Linear. There is no constant rate of change.

Tags

CCSS.8.F.A.3

• The graph of the function is increasing.

• The graph of the function is decreasing.

• The graph of the function in constant.

• The graph of the function is positive.

The graph of a function is a line that passes through the points (0, 1) and (3, 10). Which shows how to find the rate of change for the function?

• 
• 
• 
• 

Tags

CCSS.8.F.B.4

CCSS.HSF.IF.B.6

The graph of a function is a line that passes through the points (0, 1) and (3, 10). Write an equation in the form y = mx + b for this function.

• y = 1/10x + 1

• y = 3x - 1

• y = 1/3x + 9

• y = 3x + 1

Tags

CCSS.8.F.B.4

CCSS.HSF.LE.A.2

Which set of values is a function?

• (9,5) (10,5) (9,-5) (10,-5)

• (3,4) (4,-3) (7,4) (3, 8)

• (6,-5) (7, -3) (8, -1) (9, 1)

• (2, -2) (5, 9) (5, -7) (1, 4)

Tags

CCSS.8.F.A.1

Give the domain and range. Tell if it is a function.

• D: {-4, -2, 0, 2}
  R: {-2, -2, 1, 1}
  Function

• D: {-4, -2, 0, 2}
  R: {-2, 1}
  Function

• D: {-4, -2, 0, 2}
  R: {-2, -2, 1, 1}
  Not a Function

• D: {-4, -2, 0, 2}
  R: {-2, 1}
  Not a Function

Tags

CCSS.8.F.A.1

What is the definition of function?

• Has inputs and outputs

• Every input has only ONE output

• Inputs have different outputs every time

• x-values and y-values

Tags

CCSS.8.F.A.1

CCSS.HSF.IF.A.1

Is the relation a function? Why.

• Yes, because the x-value 11 has two y-values pair with it.

• Yes, because each x-value has only one y-value paired with it.

• No, because the x-value 11 has two y-values pair with it.

• No, because each x-value has only one y-value paired with it.

Tags

CCSS.8.F.A.1

For the function {(0,1), (1,-3), (2,-4), (-4,1)}, write the domain and range.

• D: {1, -3, -4,}
  R: {0, 1, 2, -4}

• D:{0, 1, 2, -4}
  R:{1, -3, -4}

• D:{0, 1, 2, 3, 4}
  R:{1, -3, -4}

Is this graph a function or not a function? 

• Function

• Not a Function