Unit 3 and 4A Review

What is the domain of this function?

• {x|x=-1,1,3,4}

• {y|y=-1,1,3,4}

• {x|x=-5,-4,-2,0,1}

• {y|y=-5,-4,-2,0,1}

What is the range of this function?

• {x|x=-1,1,3,4}

• {y|y=-1,1,3,4}

• {x|x=-5,-4,-2,0,1}

• {y|y=-5,-4,-2,0,1}

What ordered pair could be added to make this relation NOT a function?

• (-5, 4)

• (-5, 5)

• (5, 5)

• (5, 4)

Is this relation a function?

• Yes

• No

What is the range of this graph?

• {y|2 ≤ y}

• {y|y ≤ 2}

• {y|y ≤ -1}

• {y|-1 ≤ y}

• {y|y = ℝ}

Is this relation a function?

• Yes

• No

What is the range of this graph?

• {y|-3 ≤ y ≤ 3}

• {x|-3 ≤ x ≤ 3}

• {y|y = ℝ}

• {x|x = ℝ}

What is the domain of this graph?

• {y|-3 ≤ y ≤ 3}

• {x|-3 ≤ x ≤ 3}

• {y|y = ℝ}

• {x|x = ℝ}

Is the point (3, 4) a solution to this function:

 $10x-5y=15$  ?

• Yes

• No

Rewrite this equation so that y is a function of x:

 $-6x+3y=18$  

•  $3y=6x+18$  

•  $3y=-6x+18$  

•  $y=2x+18$  

•  $y=2x+6$  

•  $y=-2x+6$