Question

Amanda works as a waitress. She earns $50 a day plus 75% of the tips her customers leave.(The rest of the tips go to the kitchen
staff and bussers.) The table of values represents Amanda's earnings on different days. Write a linear equation that represents
the relationship between earnings and tips.
Tips ($)
20.00
50.00
100.00
Total Earnings ($)
65.00
87.50
125.00

Answer 1

Earns 75% of tips plus 50 each day
y = earnings, x = total tips
y = 0.75x + 50

Check:

(20,65)
65 = 0.75(20)+50
65 = 15+50
65=65

(50,87.5)
87.5 = 0.75(50)+50
87.5 = 37.5+50
87.5=87.5

(100,125)
125 = 0.75(100)+50
125 = 75+50
125=125