Select the correct answer from each drop-down menu. gary works as a sales representative in a clothing store. he gets a fixed salary of $1,500 per month. he also gets a commission of 10% of his sales. the equation of the line that represents the total amount of money he earns per month, y, in terms of the value of his total sales, x, is y = x the options for the first one are: 10, -10, 0.1, -0.1 the options for the second one are: +1,500, -1,500, +0, -375

y = 0.1x +1500

You need an equation that will give Gary a salary of $1500 even if he makes no sales (x=0). The only possible choice for the second item is then ...

... +1500

You are expected to know that Gary's commission of 10% of sales is computed by multiplying sales (x) by 10%. That is, if Gary sells $100 worth of items, his commission is ...

... 10% × $100 = $10

That is, the multiplier is 0.1.

Gary's salary (y) is then computed as

... y = 0.1x +1500

Comment on percentages

The % symbol is a shorthand way to write /100. That is, 10% = 10/100, ten hundredths, or 0.10. (You might notice here that "percent" and "hundredths" can be used interchangeably.)