SWBAT decide whether two quantities are proportional by graphing on a coordinate plane and observing for a straight line through the origin
1 point
1
Question 1
1.
Refresh--What are the two traits that we look for in a graph to tell if it represents a proportional relationship?
Select all that apply.
1 point
1
Question 2
2.
Sale—The school library receives money for every book sold at the school’s book fair.
Is there a proportional relationship between number of books and the total cost? Graph, then explain using evidence from your graph.
CFS
#1: Accurately graphs ordered pairs
#2: Justifies using appropriate evidence and vocabulary from graph
1 point
1
Question 3
3.
Ice Cream--At Mancini's Swirls, you get the first two toppings for your ice cream cone free. The rest of the prices are in the table below:
Is there a proportional relationship between number of toppings and the total cost? Graph, then explain using evidence from your graph.
CFS
#1: Accurately graphs ordered pairs
#2: Justifies using appropriate evidence and vocabulary from graph
1 point
1
Question 4
4.
Pick and Choose--Using only the shape of the graphs, decide if you agree with the following statement:
"The two graphs pictured represent proportional relationships."
CFS
#2: Justifies using appropriate evidence and vocabulary from graph
Graph 1:
Graph 2:
4 points
4
Question 5
5.
Mix and Match--Three graphs are shown below. Click and drag the blue arrows of each graph into either the "Proportional" or "Non-proportional" labels.
Graph 1
Graph 2
Graph 3
Graph 4
Proportional
Non-proportional
4 points
4
Question 6
6.
Justify--How do you know the graphs are proportional or non-proportional? Explain for EACH graph and refer to them as Graph 1, Graph 2, Graph 3, or Graph 4.
"I know Graph 1 is (proportional / not proportional) because..."
CFS
#2: Justifies using appropriate evidence and vocabulary from graphs