21
RCMultiple Choice
Cumulative Exam
Question 21 of 25 • Algebra I
A graph titled Cost of Erasers. The x-axis shows the number of erasers, numbered 1 to 9, and the y-axis shows the total cost in dollars, numbered 0.5 to 4.5. Blue diamonds appear at points (1, 0.5), (2, 1), (3, 1.5), (4, 2), (5, 2.5), (6, 3), (7, 3.5), (8, 4), (9, 4.5).
Answer
A
Each eraser costs $1.00.B
Each eraser costs $1.50.C
Three erasers cost $6.D
Seven erasers cost $3.50.