Now, analyze the following charts and answer the questions that follow, 1
Weight (x pounds)
2
3
12
Cost (y dollars)
4
8
• Does this chart show direct proportion?
YES NO
4.
• What is the unit rate?
• What is the constant (k)?
• Write the constant of proportionality in the two equations that we
discussed (y/x-k
AND y = kx)

The answer is all about the number 4

There is a paperclip lookong option at the top of your keybord

First locate the turning point (vertex) of the graph. which is at the coordinates x=5 and y=9 or (5; 9).to determine whether it's a maximum or mininum value, you have to discern whether the vertex's y-value is the highest value or lowest value the graph can reach. since the vertex's y-value, 9 is the highest value the graph can reach, it will be a maximum.another basic way to determine whether the vertex's value is max or min is to see if the graph is smiling or sad. if it's smiling, the turning point/vertex would be a minimum, while a sad parabola would have a maximum y-value at the vertex.