Vocabulary
Slope-intercept form
Solving for values
Function or not?
100
What is the definition of domain?
A set of input values (all values of x).
100

What is the slope in the function

y = 3x + 2

slope: 3

100

What must be the value of y if x is 2 in the given function y=x-1

1

100
Is it a function? Justify your answer. {(2, 3), (4, 5), ( -2, 6)}
Yes, each input has exactly one output.
200
What is the definition of range?
The set of output values (all values of y).
200

Identify the y-intercept in the function

y = 3x 

0

200

State the domain and range:

D: {1, 2, 3, 4, 5, 6} R: {-1, 0, 1, 2, 3, 6}

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.
300
What is the definition of a function?
A relationship between input and output values. Each input has exactly one output value.
300

What is the slope in the function

-4x + 8y = -12

slope: 1/2

300

What is the value of x when y is 1 in the function 

y=x+1

0

300
Is it a function? Justify your answer.
x y
2 4
1 5
2 6
No, the input of 2 has two different outputs.
400

How can we tell if the given mapping diagram is a function or not?

If it is a one-to-one or many-to-one relation.

400

What is the x-intercept in the function:

-2y=4x+5

-5/4

400

What is the value of y when x is -3 in the function

2x-3y=6

-4

400
Is it a function? Justify your answer.
Yes, it passes the Vertical Line Test.
500
What is the test to tell if a graph is a function?
Vertical Line Test
500

What should be the x-intercept if the function has a slope of -3 with y-intercept equivalent to 4?

4/3

500

In the function -8x+y-5=0, what must be the value of x when y is -3?

-1
500
Is it a function? Justify your answer.
Yes, each input has exactly one output.
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