Domain and Range

Is this set of coordinates a function? Explain
(5,4)(6,4)(7,4)

• Yes domain does not repeat
• No domain does not repeat
• No range repeats
• Yes range repeats

Tags

CCSS.8.F.A.1

Is a square a function? Justify your answer

• Yes the y-values repeat 
• No the x-values repeat
• No the y-values repeat
• Yes the x-values repeat

What is the minimum value of the range of f(x)=√x-6

• -6

• -5

• 0

• 1

Describe the domain for the function
y=x² 

• All real numbers
• x>0
• x<0
• all integers 

State the range for y=-4x+1 when given the domain {8,9,10,11}

• {8, 9, 10, 11}
• {-31, -35, -39, -43}
• {1, -3, -7, -11}
• {5, 6, 7, 8} 

What is the maximum range of the domain
{-3, -2, -1, 0} for f(x)=4^x

• .0625
• .25
• 1
• .01563

Is the equation y=x-7 a function?
Explain your answer

• Yes it is a line x-values do not repeat
• No it is a line x-values repeat 
• Yes it is a U-shape
• No it is a square 

Tags

CCSS.8.F.A.1

State the range for the domain 5<x<10 for the function y=3/4x

• {3.75, 4.5, 5.25, 6, 6.75, 7.5}
• {4.5, 5.25, 6, 6.75}
• {5, 6, 7, 8, 9, 10}
• {6, 7, 8, 9}

What values are the input values? 

• b-values
• z-values
• y-values
• x-values

Tags

CCSS.8.F.A.1

CCSS.HSF.IF.A.1

What number is a whole number

• 0.5

• -6

• 7

• 1.2