In the equation, y = 2x - 3,
2 is the ___________________.
What is the "rate of change"?
Slope is represented by what letter?
m
There are 3 different ways we can represent linear functions. We usually refer to them as our "tools". Name all three linear function "tools".
Table, graph, equation
What is the y -intercept of 3x + 2y = 18
9

What makes a relation a function?
To be a function: every input has exactly one output. t

Put the following in slope-intercept form
2x - 3y = 6
y=2/3x -2
Which of the following relations is NOT an example of a function? Explain how you know.

Relation B is not a function because input A has more than one output.

If a gym charged $30 a month and $50 registration fee, write an equation to represent "C", cost for "m", months.
C=30m + 50
Two cars are traveling from NYC to Miami. Car A's trip can be modeled by the equation y = 60x + 50 miles per hour. Car B's trip can be modeled by the table.

If the cars leave at the same time, which car will get to Miami first? How do you know?
Car A will reach Miami first because car A is traveling at a faster rate.

What is the x-intercept 5x +4y =15
x = 3