Inverse Functions
Interactive practice questions
The tax on a new tablet is $7%$7% of the advertised price, $A$A.
a
Write an equation to express the total cost $T$T as a function of the advertised price $A$A.
b
Using your answer from part (a), express the advertised price $A$A as a function of the total cost $T$T.
Easy
3min
The function $t=\sqrt{\frac{d}{4.9}}$t=√d4.9 can be used to find the number of seconds it takes for an object in Earth's atmosphere to fall $d$d metres.
Easy
2min
The function $T=2\pi\sqrt{\frac{l}{9.8}}$T=2π√l9.8 can be used to find the period $T$T of a simple pendulum of length $l$l metres.
Easy
6min
The function $d=120-4.9t^2$d=120−4.9t2 can be used to find the distance $d$d that an object dropped from a height of $120$120 metres has fallen after $t$t seconds.
Easy
18min
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