Consider the function $y=4x-3$y=4x−3.
What is the independent variable of the function?
What is the dependent variable of the function?
For a function $f$f, what does $f\left(3\right)$f(3) represent?
Consider the relation $\left\{\left(8,5\right),\left(1,3\right),\left(3,4\right),\left(9,1\right),\left(2,9\right)\right\}${(8,5),(1,3),(3,4),(9,1),(2,9)}.
Consider the relation $\left\{\left(2,3\right),\left(3,8\right),\left(6,1\right),\left(8,7\right),\left(3,2\right)\right\}${(2,3),(3,8),(6,1),(8,7),(3,2)}.