Determining Domain and Range from Graphs

What is the domain of a function?

• The set of all X values

• The set of all Y values

• The set of all output values

• The set of all points on the graph

What does an arrow on a graph indicate?

• The graph changes direction

• The graph stops at that point

• The graph has a maximum value

• The graph continues infinitely in that direction

How do you determine the domain of a graph that extends infinitely in both directions?

• By finding the midpoint of the graph

• By noting that the domain is all real numbers

• By identifying the highest and lowest X values

• By identifying the highest and lowest Y values

What is the range of a graph that only includes positive Y values?

• Zero to one

• Zero to positive infinity

• Negative infinity to zero

• Negative infinity to positive infinity

If a graph starts at X=0 and extends to the right, what is its domain?

• Zero to positive infinity

• Negative infinity to zero

• Negative infinity to positive infinity

• Zero to one

What is the range of a graph that starts at Y=0 and extends upwards?

• Negative infinity to positive infinity

• Zero to positive infinity

• Negative infinity to zero

• Zero to one

How do you write the domain of a graph that includes all real numbers?

• Negative infinity to positive infinity

• Zero to positive infinity

• Negative infinity to zero

• Zero to one

What is the domain of a semicircle graph that spans from X=-2 to X=2?

• Negative two to positive two

• Negative infinity to positive infinity

• Zero to positive infinity

• Zero to two

What is the range of a semicircle graph that spans from Y=-3 to Y=0?

• Zero to positive infinity

• Zero to three

• Negative three to zero

• Negative infinity to positive infinity

When should you use brackets in interval notation?

• When the value is a midpoint

• When the value is an infinity

• When the value is not included in the domain or range

• When the value is included in the domain or range