Answer: (8th Grade Curriculum - Unit #4)
#14
All of the graphs represent real-world data for which both x and y take on only nonnegative values, which graph in the first quadrant or on the axes. If either x or y or both could be negative, then other quadrants would be needed.
#15
Steps ( 1 * 2)
Analyze Relationships
Complete the table.
Length side of square: 1 2 3 4 5
Perimeter of square: 4 8 12 16 20
Area of square: 1 4 9 16 25
Question:
a. Are the length of a side of a square and the perimeter of the square related proportionally? Why or why not?
Yes. The ratio of the perimeter of a square to its side length is always 4.
Question:
b. Are the length of a side of a square and the area of the square related proportionally? Why or why not?
No. The ratio of the area of a square to its side length is not constant.
