0. Review of College Algebra

State the inputs and outputs of the following relation. Is it a function?

{$\(\left\)(-3,5\(\right\)),\(\left\)(0,2\(\right\)),\(\left\)(3,5\(\right\))$}

State the inputs and outputs of the following relation. Is it a function?

{$\(\left\)(2,5\(\right\)),\(\left\)(0,2\(\right\)),\(\left\)(2,9\(\right\))$}

Is the equation $y=-2x+10$ a function? If so, rewrite it in function notation and evaluate at $f\(\left\)(3\(\right\))$.

Is the equation $y^2+2x=10$ a function? If so, rewrite it in function notation and evaluate at $f\(\left\)(-1\(\right\))$.

Find the domain and range of the following graph (write your answer using interval notation).

Find the domain of $f\(\left\)(x\(\right\))=\(\sqrt{x+4}\)$ . Express your answer using interval notation.

Find the domain of $f\(\left\)(x\(\right\))=\(\frac{1}{x^2-5x+6}\)$ . Express your answer using interval notation.

Determine whether each relation defines a function. See Example 1. {(5, 1), (3, 2), (4, 9), (7, 8)}

Determine whether each relation defines a function. See Example 1. x y 3 -4 7 -4 10 -4

Determine whether each relation defines a function, and give the domain and range. See Examples 1 – 4. x y 0 0 -1 1 -2 2