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Function Vocab
Evaluating Function Rules
Is it a Function
Graphing
Name that Rule
100

a pair of numbers used to locate a point on a coordinate plane.

What is ordered pairs?

100
Evaluate f(x)=-3x if x=2
What is -6?
100

Is it a function? Justify your answer. {(2, 3), (4, 5), ( -2, 6)}

Yes, each input has exactly one output.

100
The point (1,2) is in this quadrant
What is the 1st quadrant?
100

y = x + 3

What is add 3?

200

The point where the x-axis and the y-axis intersect on the coordinate plane.

What is Origin?

200

Evaluate f(x)=2x+1 if x= 2

What is 5?

200

Using the vertical line test, does the graph of the points (1,3) and (1,5) represent a function?

No, the points fail the Vertical Line Test.

200
How do you graph the point (-3,4)?
What is you go left 3 units on the x-axis then go up 4 units on the y-axis?
200

y = 2x - 2

What is subtract 2?

300

The vertical axis on a coordinate plane.

What is the y-axis?

300
Evaluate f(x)=-3 - x if x=6
What is -9?
300

Is it a function? Justify your answer. (2,4) (1,5) (2,6)

No, the input of 2 has two different outputs.

300
The signs of the points in quadrant 2
What is the (- , +)?
300

y=3x


What is multiply by 3

400

 The first number in an ordered pair; it tells the units to move right or left from the origin.

What is  the x-coordinate ?

400

Evaluate f(x)= 5 + 4x if x=5

What is 25?

400

(0, 2)  (5,0)

What is yes.

400
The quadrant that doesn't contain one of these points (-2,3), (3,-4) (2,3)
What is the third quadrant?
400

y = 2 +x+3

What is add 5

500

A plane formed by the intersection of a horizontal number line called the x-axis and a vertical line called the y-axis.

What is a coordinate plane ?

500
Evaluate f(x)=-(4x+2) if x=7
What is -30
500

Is the following relation a function? {(-1,5),(2,3),(4,2),(10,2)}

What is yes?

500
What quadrant is the point (0,2) in?
What is none because the point sits on the y-axis
500

-2x + y = 7

What is add 7