The y-axis is increasing or decreasing by a constant amount.
100
What is a function?
Every input must equal only one output
200
What is the slope of (1,2) and (2,5)?
What is 3.
200
Solve the following equation: 2x + 3 + 13
What is x = 5
200
What does it mean for an equation to be linear?
The equation is changing by a constant amount and the graph is represented by a straight line.
What does it mean for an equation to be linear?
200
Is the table linear? Why or why not?
x y
-1 4
0 6
2 8
3 10
No because it is not increasing by a constant amount
200
What test must a graph pass in order to be a function?
The vertical line test
The vertical line test
300
What does the slope look like if it is 0?
What is a horizontal line.
300
Solve for x: 3(x + -9) = -15
what is x = 4
300
Is the following equation linear? Why or why not.
y = 3x
Yes because the slope is 3 and the y-intercept is 0.
300
Find the slope of the table:
x y
0 3
2 9
3 12
5 18
Slope is 3
300
What property is A x B = B x A?
Commutative Property
400
What direction is the graph going when the slope is negative?
What is decreasing.
400
Solve for x: 5 (x + 6) = 56
What is x = 26/5 or 5 1/5
400
What is the slope and y-intercept of the equation
y = -2x -5
Slope: -2
Y-intercept: -5
400
Write an equation from the table
x y
1 -1
3 7
4 11
6 19
y = 4x -5
400
What property is 2 + (3 + 4) = (2 + 3) + 4?
Associative Property
500
What is the slope of the points (2, 3) and (-2, 11)?
What is -2
500
Create an equation for the following story:
Jack is trying to save money for an IPad. He has $150.00 in the bank and saves $25.00 per month. Let m be the number of months Jack is going to save and let t be the total amount of money he has.
What is t=25m + 150
500
How does the slope and y-intercept relate to a problem?
The slope is how the problem is changing and the
y-intercept is the initial amount.
500
What is the y-intercept of the table:
x y
2 11
3 17
4 23
5 29