1R: Warm-Up 4/25/22

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

• Function
• Not a Function

Is this mapping a function or not a function? 

• Function
• Not a Function

All of the y values or outputs are called what?

• Domain
• Range
• Relation
• Function

All of the x values or inputs are called what?

• Domain
• Range
• Relation
• Function

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}

5x - 4 + 2x = 3

• 1
• 2
• 3
• 4

2x + 3(5x - 7) = 47

• x = 1
• x = 2
• x = 3
• x = 4

Find the slope

• -5/3
• -3/5
• 5/3
• 3/5

The slopes of parallel lines are...

• the same

• opposite

• always different