the graph shows the relationship between the total cost and the number of erasers bought at the student…

the graph shows the relationship between the total cost and the number of erasers bought at the student store. which statement is true? each eraser costs $1.00. each eraser costs $1.50. three erasers cost $6. seven erasers cost $3.50.

the graph shows the relationship between the total cost and the number of erasers bought at the student store. which statement is true? each eraser costs $1.00. each eraser costs $1.50. three erasers cost $6. seven erasers cost $3.50.

Answer

Explanation:

Step1: Find cost - per - eraser from graph

Pick a point, say (2, 1). Cost for 2 erasers is $1. Cost per eraser = $\frac{1}{2}=0.5$.

Step2: Check each option

  • Option 1: Each eraser costs $1.00. False as cost per eraser is $0.5.
  • Option 2: Each eraser costs $1.50. False as cost per eraser is $0.5.
  • Option 3: Three erasers cost $6. Cost per eraser would be $\frac{6}{3}=2$, false as cost per eraser is $0.5.
  • Option 4: Seven erasers cost $3.50. Cost per eraser = $\frac{3.50}{7}=0.5$, True.

Answer:

Seven erasers cost $3.50.