Naming, Representing, and Evaluating Functions

What is the range?

• {-3, -1, 2, 4}

• {0, 4, 7} 

• {0, 4, 4, 7}

• {7, 4, 0}

Tags

CCSS.8.F.A.1

CCSS.HSF.IF.A.1

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: {-4, 0, 1, 2}
  R:{-4, -3, 1}

• D: {0, 1, 2, 3, 4}
  R:{1, -3, -4}

• D: {0, 1, 2, -4}
  R: {1, -3, -4, 1}

What is the Domain of this linear function?

• -3 < x ≤ 5

• x = -1

• 5 < x ≤ -3

• -2 < x ≤ 6

Tags

CCSS.8.F.A.1

CCSS.HSF.IF.B.5

The grocery store sells cantaloupes for $4.50 per pound.  Write a function to represent the cost, c, for the number of pounds of cantaloupes bought, p.

• c = 45p

• c = 4.5p

• p = 4.5c

• p = 45c

Tags

CCSS.HSF-BF.A.1A

Evaluate f(-2) if f(x) = x+3

• -1

• 1

• 5

• -5

Tags

CCSS.HSF.IF.A.2

Given 
f(x)= 2x² + 5x - 17, find f(-1). 

• f(-1) = -20

• f(-1) = -24

Tags

CCSS.HSF.IF.A.2

Is the table on the left a function? 

• Yes, because every input has exactly one output

• No, because 1 and 3 have the same output value 

Tags

CCSS.8.F.A.1

Is the table on the right a function? 

• No, because not every input has exactly one outout

• Yes, because every input has exactly one output 

• No, because 4 has more than one output 

Tags

CCSS.8.F.A.1

find the range of the function when the domain is { -3, 0 , 3 } 
t = 2 s 

• range : { -6 , 0 , 6 } 

• range : { 12 , 1 , - 12 } 

• range : { 10 , 11 , 12 } 

Tags

CCSS.8.F.A.1

CCSS.HSF.IF.A.1

Evaluate the function rule: 
y = x - 1           for         x = -2 

• y = 3 

• y = -3 

• y = 4 

• y = -4 

Tags

CCSS.HSF.IF.A.2