Interactive practice questions
Express the function $f\left(x\right)=4x+5$f(x)=4x+5 with domain {$-1$−1, $0$0, $1$1} as a set of ordered pairs.
Write all the ordered pairs on the same line, separated by commas.
Easy
2min
Express the function $f\left(x\right)=x-x^2$f(x)=x−x2 with domain the set of integers from $-2$−2 to $2$2 (inclusive) as a set of ordered pairs.
Write all the ordered pairs on the same line, separated by commas.
Easy
3min
State a suitable restricted domain for $f\left(x\right)=-x^2-3$f(x)=−x2−3 so that the function is one-to-one and the range remains the same.
Easy
1min
State a suitable restricted domain for $f\left(x\right)=\left(x+3\right)^2$f(x)=(x+3)2 so that the function is one-to-one and the range remains the same.
Easy
1min
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