Algebra Examples

$f (x) = x + 2$

To find the x-intercept, substitute in $0$ for $y$ and solve for $x$ .

$0 = x + 2$

Solve the equation.

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Rewrite the equation as $x + 2 = 0$ .

$x + 2 = 0$

Subtract $2$ from both sides of the equation.

$x = - 2$

To find the y-intercept, substitute in $0$ for $x$ and solve for $y$ .

$y = (0) + 2$

Solve the equation.

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Remove the parentheses around the expression $0$ .

$y = 0 + 2$

Add $0$ and $2$ .

$y = 2$

These are the $x$ and $y$ intercepts of the equation $y = x + 2$ .

x-intercept: $(- 2, 0)$

y-intercept: $(0, 2)$

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