The graph of a linear function is a straight line. Graphically, where the line crosses the

# Finding the Zeros of Linear Functions Graphically

Zeros can be observed graphically. An

All lines, with a value for the slope, will have one zero. To find the zero of a linear function, simply find the point where the line crosses the

## Zeros of linear functions

The blue line,

# Finding the Zeros of Linear Functions Algebraically

To find the zero of a linear function algebraically, set

The zero from solving the linear function above graphically must match solving the same function algebraically.

## Example: Find the zero of $y=\frac{1}{2}x+2$ algebraically

First, substitute

Next, solve for

The zero is