f(3) also means f(x). Therefore, the x value is 3, and the y value is 10: the point on the graph is (3, 10)
Answer:
£1.80/kg
Step-by-step explanation:
The total spent on apples and pears is £12.70, and this is the sum of the costs of the apples and the pears respectively:
£12.70 = (unit cost of apples)(2 kg) + (unit cost of pears)(7 kg), or
£12.70 = (unit cost of apples)(2 kg) + (£1.30/kg)(7 kg).
Solving for (unit cost of apples)(2 kg), we get £12.70 - (£1.30/kg)(7 kg), or:
(unit cost of apples)(2 kg) = £12.70 - £9.1 = £3.60
Solving for (unit cost of apples), we divide both sides by (2 kg), obtaining:
£3.60
(unit cost of apples) = ---------- = £1.80/kg
2 kg
Answer:
(4,-1)
Step-by-step explanation:
x is 4 y is -1
Answer:
51232
Step-by-step explanation:
This is a good problem for your calculator.
I think it is C because it is in the positive and negitive
