Sheenqui's pay at an electronics store has a partial variation formula based on her sales. Her pay is $260 for $2000 in sales and $500 for $5000 in sales. The formula for her pay is a slope times the independent variable (her sales) plus a fixed value. Specifically, her pay formula is y = 40x + 200, where y is her pay, x is her sales, 40 is the slope, and 200 is the fixed value.
