Share Year 8 11.1 Functions
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The cost of hiring a ladder is in two parts. There is a delivery charge of $10, plus a charge per day of $5. Work out the cost of hiring a ladder for 3 days.
$25
The cost of hiring a ladder is in two parts. There is a delivery charge of $10, plus a charge per day of $5. Work out the cost of hiring a ladder for 6 days.
$ 40
The cost of hiring a ladder is in two parts. There is a delivery charge of $10, plus a charge per day of $5. The cost of hiring a ladder for n days is $h. Write a function: h = ..........
h = 5n + 10
Cinema tickets cost $8 each and there is a single booking fee of $4. Work out the total cost of booking 5 tickets.
$ 44
Cinema tickets cost $8 each and there is a single booking fee of $4. The total cost of booking t tickets is $y. Write a function: y = ..............
y = 8t + 4
The cost of renting an apartment is in two parts. There is an agent's fee of $ 65, plus a monthly rent of $ 750. Find the total cost of renting for 3 months.
$ 2315
The cost of renting an apartment is in two parts. There is an agent's fee of $ 65, plus a monthly rent of $ 750. Find the total cost of renting for 6 months.
$ 4565
The cost of renting an apartment is in two parts. There is an agent's fee of $ 65, plus a monthly rent of $ 750. The cost for m months is $r. Write a function: r = ..................
r = 750m + 65
A car has 37 litres of petrol in its tank at the start of a journey. It uses petrol at a rate of 6 litres per hour. Work out how many litres are in the tank after 2 hours.
25 litres
A car has 37 litres of petrol in its tank at the start of a journey. It uses petrol at a rate of 6 litres per hour. Work out how many litres are in the tank after 3 hours.
19 litres
A car has 37 litres of petrol in its tank at the start of a journey. It uses petrol at a rate of 6 litres per hour. There are L litres in the tank after t hours. Write a function: L = 37 - .......
L = 37 - 6t
A gardener plants a tree and measures the height every year. The height is h metres after t years and h = 2t + 3. Find the height after 6 years.
15 m
Here is a function: s = 24 - 2t. Work out the value of s when t = 0.
24
Here is a function: s = 24 - 2t. Work out the value of s when t = 3.
18
Here is a function: s = 24 - 2t. Work out the value of s when t = 5.
14
