Question

Question 3 of 10Which output in this table is incorrect?Cost ofItemTax onItem.081.002.00 .163.00 .248.50 .6410.00 .80Note: all entries are in dollarsA. 0.80B. 0.64C. 0.16D. 0.24

Answer 1

Given:

The table;

where;

From the data given in the table, the relationship between the input and output can be given as;

`y=0.08x`
`\begin{gathered} \text{When the cost = \$1.00, x = 1} \\ y=0.08*1 \\ y=\text{ \$0.08} \\ \\ \text{When the cost = \$}2.00,\text{ x = 2} \\ y=0.08*2 \\ y=\text{ \$0.16} \\ \\ \text{When the cost = \$3.00, x = 3} \\ y=0.08*3 \\ y=\text{ \$0.24} \\ \\ \text{When the cost = \$8.50, x = 8.5} \\ y=0.08*8.5 \\ y=\text{ \$0.68} \\ \\ \text{When the cost = \$10.00, x = 10} \\ y=0.08*10 \\ y=\text{ \$0.80} \end{gathered}`

From the above, it can be seen that when the cost of the item was $8.50, the tax on the item should be $0.68 but on the table, it was written as $0.64

Therefore, the output in the table that is incorrect is $0.64

The correct answer is OPTION B