Jay wrote an equation to determine the sales tax on an item he wanted to buy. The equation was y = 0.09 x, where y represents the amount of sales tax and x represents the cost of the item before tax is added. Which graph represents this information?
Sales Tax Amounts
On a coordinate plane, the x-axis is labeled Cost of Item (in dollars) and the y-axis is labeled sales tax (in dollars). A line goes through (10, 0.9).

Sales Tax Amounts
On a coordinate plane, the x-axis is labeled Cost of Item (in dollars) and the y-axis is labeled sales tax (in dollars). A line goes through (1, 10).

Sales Tax Amounts
On a coordinate plane, the x-axis is labeled Cost of Item (in dollars) and the y-axis is labeled sales tax (in dollars). A line goes through (30, 1).

Sales Tax Amounts
On a coordinate plane, the x-axis is labeled Cost of Item (in dollars) and the y-axis is labeled sales tax (in dollars). A line goes through (1, 30).