Key Points of Functions

Find the function's x- and y-intercepts.

• x-int (0,-3) and (0,1)

  y-int (-4,0)

• x-int (-3,0) and (1,0)

  y-int (0,-4)

• x-int (-4, 1)

  y-int (-4, ∞)

• x-int (-3,0) and (1,0)

  y-int (0,-3)

Find the function's maximum and minimum points

• no maximum

  minimum (-4,-1)

• no minimum

  maximum (-3, 1)

• no maximum

  minimum (-1,-4)

• maximum (-3,1)

  minimum (0,-3)

Identify where the function is increasing and where it is decreasing.

• increasing x > -1 and decreasing x<-1

• increasing x < -1 and decreasing x > -1

• increasing ꓣ and decreasing nowhere

• increasing -1 < x < 4 and decreasing -3 < x < 1

Which coordinate is a relative maximum for the graph?

• None

• (0,4)

• (3,1)

• (1, -1)

Which of the following is the correct definition of a function?

• A relation where each input has exactly one output

• A relation where each input has multiple outputs

• A relation where each output has multiple inputs

• A relation where inputs and outputs are the same

A function is a type of rule in which each ​ (a)   results in exactly one ​ (b)   .​

• input

• output

• linear

• nonlinear

• straight line

Which coordinate is a relative minimum of the graph?

• None

• (0,4)

• (3,1)

• (1, -1)

• Function
• Not a Function

• Function
• Not a Function

On which interval is the graph increasing?