A scale is the number you go by on the x and y axis when creating a graph.
100
What does a table always need?
A table always needs a title and appropriate labels of course!
100
What variable is on the x-axis? What variable is on the y-axis?
The independent variable is on the x-axis and the dependent variable is on the y-axis.
100
What is a difference between a one step equation and a two step equation?
A one step equation only requires one operation. In a two step equation you have to perform two operations.
100
Solve the following by writing an equation:
Christmas trees sell for $5.50 per foot. How much would a 9 foot tree cost?
T= 5.5F
T= 5.5*9
T= $49.50
200
What does a linear mean?
A linear relationship is shown with a straight line on a graph because there is a constant rate of change.
200
What variables are represented in a table?
The independent and dependent variables are represented in the table.
200
When should you connect the points on a graph?
Points on a graph should be connected when there can be data represented between the points.
200
When is it a good idea to use an equation?
When you don't want to make an entire table and want to be able to find an exact answer.
200
Solve for y in the following equation:
y= 4x + 13
If x=6, what does y equal?
y=4x + 13
y= (4*6) + 13
y= 24 + 13
y= 37
300
What is a variable?
A variable is a quantity that can change.
300
What is an advantage to using a table?
You can see the exact data.
300
Describe the steps you would take to create a graph.
1. Create a table
2. Label axis and use appropriate scale
3. Give graph a title
4. Plot points
300
What are the five steps to writing an equation?
1. Identify the variables
2. See how they relate to each other
3. Write step number two as a sentence
4. Put in =, -, +, x, รท
5. Use variables for unknown
300
Sketch a graph of the following situation:
The amount of Christmas trees sold rapidly increased over a short amount of time and then gradually decreased.
The graph should increase quickly for a little bit and then slowly decrease. The graph should have on it the time and the amount of Christmas trees sold.
400
Describe an independent variable and a dependent variable
An independent variable is the variable that determines the value of the dependent variable. Its values do not depend on anything else.
A dependent variable is determined by the independent variable.
400
What is a disadvantage in using a table?
It might be harder to "see" the relationship between the data.
400
What is an advantage of using a graph? What is a disadvantage of using a graph?
Advantage- Can see the change visually represented
Disadvantage- have to estimate values
400
Give an example of a one step equation and a two step equation.
One step equation: p=21c
Two step equation: p= 100-6n
400
Solve the following problem by writing an equation using all 5 steps.
Miss Z. loves to buy music on iTunes but she only has a $50 gift card. Every song she buys costs $1.29. How much will she have left on her gift card if she buys 23 songs?
Describe what an equation is and provide an example
An equation is a rule containing variables that represents a mathematical relationship.
500
How can you see change represented in the table?
You can see the exact value and how it increases or decreases and if there is a pattern.
500
How is a constant rate of change shown on a graph?
A constant rate of change is shown with a linear relationship.
500
How would you write the following sentence as an equation?
The cost of a phone bill is equal to the amount of minutes talked each month times the cost per minute of 10 cents plus the plan that costs $25 a month. How much does your phone bill cost if you talked for 350 minutes?