#17: Relations and Functions Quiz Review

#17: Relations and Functions Quiz Review

Coordinate Plane

• Naming Quadrants

• Ordered Pairs

Multiple Choice

Identify the quadrant where the point is located. (10 , -5)

• I

• II

• III

• IV

Multiple Choice

Identify the quadrant where the point is located. (6 , 3)

• I

• II

• III

• IV

Multiple Choice

In the ordered pair:
(4, 7)
What is the x value?

• 4
• 7

Multiple Choice

What is the ordered pair of point E?

• (2,5)
• (5,2)
• (-5,2)
• (5,-2)

Domain, Range, and is it a Function??

Domain are all the x-values

Range are all the y-values

To determine if it is a function: must pass vertical line test OR x values must not repeat

Multiple Choice

Is this mapping a function or not a function?

• Function

• Not a Function

Multiple Choice

Is this table a function or not a function? 

• Function
• Not a Function

Multiple Choice

What is the domain?
Remember domain is the "x" values. 
And an open circle means it DOES NOT equal that number - use < and >
Only use ≤ and ≥ with a closed circle.

• -4 < x ≤ 5
• -4 ≤ x < 5
• -3 < y < 3
• -3 ≤ y ≤ 3

Multiple Choice

For the function {(0,1), (1,-3), (2,-4), (-4,1)}, write the domain.
Remember:  Domain is x 
(x,y)

• 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}

Multiple Choice

Which graph does NOT pass the vertical line test?

• Graph 1
• Graph 2
• Graph 3
• Graph 4

Multiple Choice

What is the domain of the graph?

• y≥1
• x ≥ 1
• All real numbers
• none of these

Multiple Choice

What is the range of the graph?

• y≥1
• x≥1
• All real numbers
• none of these

Sketching Graphs

• Know what x-axis and y-axis represent

• Imagine what the function would like look

Multiple Choice

Describe the situation.

• Sales decrease quickly at a constant rate, and then increase slowly at a constant rate.
• Sales stay constant, then decrease at a constant rate, and increase slowly.  

Multiple Choice

Describe the situation.

• The volume of the balloon increases at a constant rate, then stays constant, then increases, then constant, and increases at a constant rate.
• The volume of the balloon increase at a constant rate, decreases, then stays constant, then increases, then constant, and increases at a constant rate.