Algebra Examples

$f (x) = {(x + 7)}^{2} - 9$

Step 1

Write $f (x) = {(x + 7)}^{2} - 9$ as an equation.

$y = {(x + 7)}^{2} - 9$

Step 2

Since $x$ is on the right side of the equation, switch the sides so it is on the left side of the equation.

${(x + 7)}^{2} - 9 = y$

Step 3

Add $9$ to both sides of the equation.

${(x + 7)}^{2} = y + 9$