Question

Kadeesha was comparing the price of chicken thighs at two stores. The equation y, equals, 5, point, 9, 6, xy=5.96x represents the total cost, in dollars and cents, yy, that it costs for xx pounds of chicken thighs at SuperGrocery A. The graph below represents the total cost, in dollars and cents, yy, that it costs for xx pounds of chicken thighs at SuperGrocery B.
0
Pounds
Total Cost (Dollars)
x
y
0
Pounds
Total Cost (Dollars)
(5,$50.15)
(10,$100.30)
SuperGrocery B
How much more expensive is it, per pound, to buy chicken thighs at Store B than at Store A?

Answer 1

Store A: $5.96 per lb.

Store B slope = (100.30 − 50.15)/(10 − 5) = 50.15/5 = $10.03 per lb.

Difference = 10.03 − 5.96 = $4.07 per lb.

So Store B is $4.07 more expensive per pound.